trocho-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

Forms: before a vowel troch-

/trɒk/.

Origin: A borrowing from Greek. Etymon: Greek τροχο-.

Etymology: < ancient Greek τροχο-, combining form (in e.g. τροχοποιεῖν to make wheels) of τροχός wheel, disk (see trochus n.); compare -o- connective.Compare scientific Latin trocho-, French trocho-, German trocho-.

combining form representing Greek τροχός wheel, disk; occurring in several scientific words.

trocheidoscope n.

Brit.

/trə(ʊ)ˈkʌɪdəskəʊp/

U.S.

/trəˈkaɪdəˌskoʊp/

/troʊˈkaɪdəˌskoʊp/

a rotating disc with coloured sectors, for showing combinations of colours ( Encycl. Dict. 1888). [ < trocho- comb. form + -eidoscope (in kaleidoscope n.).]

trochelminth n.

Brit.

/ˈtrɒkɛlmɪnθ/

U.S.

/ˈtrɑk(ə)lˌmɪnθ/

a rotifer. [ < trocho- comb. form + ancient Greek ἑλμινθ- , ἕλμινς worm (see helminth n.).]

trochoblast n.

Brit.

/ˈtrɒkə(ʊ)blɑːst/

/ˈtrɒkə(ʊ)blast/

U.S.

/ˈtrɑkəˌblæst/

one of the embryonic cells giving rise to the prototroch in the trochophore larva of marine annelids.

ΘΚΠ

the world > life > biology > substance > cell > types of cells > [noun] > other types of cells

reticular cell1832

torula1833

reserve cell1842

subcell1844

parenchyma cell1857

pedicel cell1858

nettle cell1870

heterocyst1872

prickle cell1872

angioblast1875

palisade cell1875

sextant1875

spindle cell1876

neuroblast1878

body cell1879

plasma cell1882

reticulum cell1882

stem cell1885

Langhans1886

basal cell1889

pole cell1890

myelocyte1891

statocyst1892

mast cell1893

thrombocyte1893

iridocyte1894

precursor1895

nurse cell1896

amacrine1900

statocyte1900

mononuclear1903

oat cell1903

myeloblast1904

trochoblast1904

adipocyte1906

polynuclear1906

fibrocyte1911

akaryote1920

Rouget cell1922

Sternberg–Reed1922

amphicyte1925

monoblast1925

pericyte1925

promyelocyte1925

pituicyte1930

agamete1932

sympathogonia1934

athrocyte1938

progenitor1938

Reed–Sternberg cell1939

submarginal1941

delta cell1942

mastocyte1947

squame1949

podocyte1954

transformed cell1956

transformant1957

spheroplast1958

pinealocyte1961

immunocyte1963

lactotroph1966

mammotroph1966

minicell1967

proheterocyst1970

myofibroblast1971

cybrid1974

1904 Amer. Naturalist 38 500 Cells..identical in origin with the ‘primary trochoblasts’ of the annelids.

trochocephalic adj.

Brit.

/ˌtrɒkə(ʊ)sᵻˈfalɪk/

/ˌtrɒkə(ʊ)kɛˈfalɪk/

U.S.

/ˌtrɑkoʊsəˈfælɪk/

having a round form of skull due to permature union of the parietal and frontal bones. [Compare French trochocéphale, adjective (1869 or earlier), German Trochocephalen, plural noun (1856 or earlier).]

ΘΚΠ

the world > health and disease > ill health > deformity > deformities of specific parts > [adjective] > of skull

microcephalic1857

thlipsencephalous1860

microcephalous1871

klinocephalic1878

trigonocephalic1878

trochocephalic1878

iniencephalic1893

1878 R. T. H. Bartley tr. P. Topinard Anthropol. v. 176 Trochocephalic [Fr. Trochocéphalie], very round skull.

trochocephaly n.

Brit.

/ˌtrɒkə(ʊ)ˈsɛfəli/

/ˌtrɒkə(ʊ)ˈkɛfəli/

U.S.

/ˌtrɑkoʊˈsɛfəli/

the condition of being trochocephalic. [After French trochocéphalie (1876 or earlier); compare German Trochocephalie (1856 or earlier).]

ΘΚΠ

the world > health and disease > ill health > deformity > deformities of specific parts > [noun] > of skull

head-mould-shot1650

head-mould-shottenness1684

mould-shot1752

microcephalus1850

iniencephalus1857

microcephalism1861

microcephaly1863

plagiocephaly1873

trigonocephaly1878

trochocephaly1878

leontiasis1885

iniencephaly1902

1878 R. T. H. Bartley tr. P. Topinard Anthropol. Index 547/1 Trochocephaly [Fr. Trochocéphalie].

Categories »

trochoceracone n.

Brit.

/ˌtrɒkə(ʊ)ˈsɛrəkəʊn/

U.S.

/ˌtrɑkoʊˈsɛrəˌkoʊn/

a nautiloid shell with loose flattened coils, as those of the fossil genus Trochoceras. [ < scientific Latin Trochoceras (see trochoceran adj.) + ancient Greek κῶνος cone n.¹]

trochoceran adj.

Brit.

/trə(ʊ)ˈkɒs(ə)rən/

U.S.

/troʊˈkɑs(ə)rən/

having the form or character of such a shell ( Cent. Dict. Suppl.). [After scientific Latin Trochoceras (1847).]

trochocœlomate adj.

Brit.

/ˌtrɒkə(ʊ)ˈsiːləmeɪt/

/ˌtrɒkə(ʊ)sɪˈləʊmət/

U.S.

/ˌtrɑkoʊˈsiləˌmeɪt/

belonging to the Trochocœlomata, a proposed division of Metazoa, containing animals having radiated cœlomes (= radiata at Radiata n.¹). [Compare scientific Latin trochocoelomata (1884 or earlier).]

ΘΚΠ

the world > animals > invertebrates > Radiata > [adjective]

radiate1841

rayed1841

trochocœlomate1884

1884 Hyatt in Proc. Boston Soc. Nat. Hist. 5 Mar. 113 We can readily transform a protocoelomate into a trochocoelomate by destroying the horizontal parts of the partitions between the ampullae.

trochometer n.

Brit.

/trə(ʊ)ˈkɒmᵻtə/

U.S.

/troʊˈkɑmədər/

= trechometer n. (Worcester 1846). [After German Trochometer (1819 or earlier).]

trochophore n.

Brit.

/ˈtrɒkə(ʊ)fɔː/

U.S.

/ˈtrɑkəˌfɔr/

= trochosphere n.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > member of > larval form

telotroch1877

trochophore1892

1892 J. A. Thomson Outl. Zool. xi. 182 By far the most important larval form among Annelids is that known as the Trochosphere or Trochophore.

1909 J. W. Jenkinson Exper. Embryol. 213 Eight instead of the usual four macromeres were found in the Trochophore larva.

trochosphere n.

Brit.

/ˈtrɒkə(ʊ)sfɪə/

U.S.

/ˈtrɑkəˌsfɪ(ə)r/

a larval form constituting a stage in the development of most molluscs and of certain worms, esp. marine annelids, characterized by a spheroidal body with a ring of cilia; also attributive.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [noun] > member of

trochosphere1883

trochozoon1890

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [adjective] > relating to or having form of a trochosphere

trochosphere1883

trochospheric1899

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > mollusc or shell-fish > larva

veliger1877

trochosphere1883

1883 E. R. Lankester in Encycl. Brit. XVI. 648/1 [In the Limpet the] Diblastula..acquires a ciliated band, and becomes a nearly spherical Trochosphere.

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 454 The Mollusca with the exception of Cephalopoda pass through a typical larval development, in two stages—a Trochosphere and a Veliger stage.

trochospheric adj.

Brit.

/ˌtrɒkə(ʊ)ˈsfɛrɪk/

/ˌtrɒkə(ʊ)ˈsfɪərɪk/

U.S.

/ˌtrɑkoʊˈsfɪrɪk/

/ˌtrɑkəˈsfɪrɪk/

/ˌtrɑkoʊˈsfɛrɪk/

/ˌtrɑkəˈsfɛrɪk/

= trochospherical adj.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [adjective] > relating to or having form of a trochosphere

trochosphere1883

trochospheric1899

1899 New Sydenham Soc. Lexicon Trochospheric.

trochospherical adj.

Brit.

/ˌtrɒkə(ʊ)ˈsfɛrᵻkl/

U.S.

/ˌtrɑkoʊˈsfɪrək(ə)l/

/ˌtrɑkoʊˈsfɛrək(ə)l/

pertaining to or having the form of a trochosphere.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > relating to larval stage

trochospherical1891

1891 Cent. Dict. Trochospherical.

trochozoon n.

Brit.

/ˌtrɒkə(ʊ)ˈzəʊən/

/ˌtrɒkə(ʊ)ˈzəʊɒn/

U.S.

/ˌtrɑkəˈzoʊˌɑn/

one of the Trochozoa, a collective term for those molluscs, annelids, etc. which pass through a trochosphere larval stage, or for such larvæ; also for a hypothetical ancestral group of animals from which these are assumed to be derived. [After scientific Latin Trochozoon (1877 or earlier).]

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [noun] > member of

trochosphere1883

trochozoon1890

1890 Nature 22 May 94/1 The author's conclusions are, that the Balanoglossus..has originated from a trochozoon which acquired some features in common with worms.

This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2022).

单词	trocho-
释义	trocho-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Forms: before a vowel troch- /trɒk/. Origin: A borrowing from Greek. Etymon: Greek τροχο-. Etymology: < ancient Greek τροχο-, combining form (in e.g. τροχοποιεῖν to make wheels) of τροχός wheel, disk (see trochus n.); compare -o- connective.Compare scientific Latin trocho-, French trocho-, German trocho-. combining form representing Greek τροχός wheel, disk; occurring in several scientific words. trocheidoscope n. Brit. /trə(ʊ)ˈkʌɪdəskəʊp/ , U.S. /trəˈkaɪdəˌskoʊp/ , /troʊˈkaɪdəˌskoʊp/ a rotating disc with coloured sectors, for showing combinations of colours ( Encycl. Dict. 1888). [ < trocho- comb. form + -eidoscope (in kaleidoscope n.).] trochelminth n. Brit. /ˈtrɒkɛlmɪnθ/ , U.S. /ˈtrɑk(ə)lˌmɪnθ/ a rotifer. [ < trocho- comb. form + ancient Greek ἑλμινθ- , ἕλμινς worm (see helminth n.).] trochoblast n. Brit. /ˈtrɒkə(ʊ)blɑːst/ , /ˈtrɒkə(ʊ)blast/ , U.S. /ˈtrɑkəˌblæst/ one of the embryonic cells giving rise to the prototroch in the trochophore larva of marine annelids. ΘΚΠ the world > life > biology > substance > cell > types of cells > [noun] > other types of cells reticular cell1832 torula1833 reserve cell1842 subcell1844 parenchyma cell1857 pedicel cell1858 nettle cell1870 heterocyst1872 prickle cell1872 angioblast1875 palisade cell1875 sextant1875 spindle cell1876 neuroblast1878 body cell1879 plasma cell1882 reticulum cell1882 stem cell1885 Langhans1886 basal cell1889 pole cell1890 myelocyte1891 statocyst1892 mast cell1893 thrombocyte1893 iridocyte1894 precursor1895 nurse cell1896 amacrine1900 statocyte1900 mononuclear1903 oat cell1903 myeloblast1904 trochoblast1904 adipocyte1906 polynuclear1906 fibrocyte1911 akaryote1920 Rouget cell1922 Sternberg–Reed1922 amphicyte1925 monoblast1925 pericyte1925 promyelocyte1925 pituicyte1930 agamete1932 sympathogonia1934 athrocyte1938 progenitor1938 Reed–Sternberg cell1939 submarginal1941 delta cell1942 mastocyte1947 squame1949 podocyte1954 transformed cell1956 transformant1957 spheroplast1958 pinealocyte1961 immunocyte1963 lactotroph1966 mammotroph1966 minicell1967 proheterocyst1970 myofibroblast1971 cybrid1974 1904 Amer. Naturalist 38 500 Cells..identical in origin with the ‘primary trochoblasts’ of the annelids. trochocephalic adj. Brit. /ˌtrɒkə(ʊ)sᵻˈfalɪk/ , /ˌtrɒkə(ʊ)kɛˈfalɪk/ , U.S. /ˌtrɑkoʊsəˈfælɪk/ having a round form of skull due to permature union of the parietal and frontal bones. [Compare French trochocéphale, adjective (1869 or earlier), German Trochocephalen, plural noun (1856 or earlier).] ΘΚΠ the world > health and disease > ill health > deformity > deformities of specific parts > [adjective] > of skull microcephalic1857 thlipsencephalous1860 microcephalous1871 klinocephalic1878 trigonocephalic1878 trochocephalic1878 iniencephalic1893 1878 R. T. H. Bartley tr. P. Topinard Anthropol. v. 176 Trochocephalic [Fr. Trochocéphalie], very round skull. trochocephaly n. Brit. /ˌtrɒkə(ʊ)ˈsɛfəli/ , /ˌtrɒkə(ʊ)ˈkɛfəli/ , U.S. /ˌtrɑkoʊˈsɛfəli/ the condition of being trochocephalic. [After French trochocéphalie (1876 or earlier); compare German Trochocephalie (1856 or earlier).] ΘΚΠ the world > health and disease > ill health > deformity > deformities of specific parts > [noun] > of skull head-mould-shot1650 head-mould-shottenness1684 mould-shot1752 microcephalus1850 iniencephalus1857 microcephalism1861 microcephaly1863 plagiocephaly1873 trigonocephaly1878 trochocephaly1878 leontiasis1885 iniencephaly1902 1878 R. T. H. Bartley tr. P. Topinard Anthropol. Index 547/1 Trochocephaly [Fr. Trochocéphalie]. Categories » trochoceracone n. Brit. /ˌtrɒkə(ʊ)ˈsɛrəkəʊn/ , U.S. /ˌtrɑkoʊˈsɛrəˌkoʊn/ a nautiloid shell with loose flattened coils, as those of the fossil genus Trochoceras. [ < scientific Latin Trochoceras (see trochoceran adj.) + ancient Greek κῶνος cone n.¹] trochoceran adj. Brit. /trə(ʊ)ˈkɒs(ə)rən/ , U.S. /troʊˈkɑs(ə)rən/ having the form or character of such a shell ( Cent. Dict. Suppl.). [After scientific Latin Trochoceras (1847).] trochocœlomate adj. Brit. /ˌtrɒkə(ʊ)ˈsiːləmeɪt/ , /ˌtrɒkə(ʊ)sɪˈləʊmət/ , U.S. /ˌtrɑkoʊˈsiləˌmeɪt/ belonging to the Trochocœlomata, a proposed division of Metazoa, containing animals having radiated cœlomes (= radiata at Radiata n.¹). [Compare scientific Latin trochocoelomata (1884 or earlier).] ΘΚΠ the world > animals > invertebrates > Radiata > [adjective] radiate1841 rayed1841 trochocœlomate1884 1884 Hyatt in Proc. Boston Soc. Nat. Hist. 5 Mar. 113 We can readily transform a protocoelomate into a trochocoelomate by destroying the horizontal parts of the partitions between the ampullae. trochometer n. Brit. /trə(ʊ)ˈkɒmᵻtə/ , U.S. /troʊˈkɑmədər/ = trechometer n. (Worcester 1846). [After German Trochometer (1819 or earlier).] trochophore n. Brit. /ˈtrɒkə(ʊ)fɔː/ , U.S. /ˈtrɑkəˌfɔr/ = trochosphere n. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > member of > larval form telotroch1877 trochophore1892 1892 J. A. Thomson Outl. Zool. xi. 182 By far the most important larval form among Annelids is that known as the Trochosphere or Trochophore. 1909 J. W. Jenkinson Exper. Embryol. 213 Eight instead of the usual four macromeres were found in the Trochophore larva. trochosphere n. Brit. /ˈtrɒkə(ʊ)sfɪə/ , U.S. /ˈtrɑkəˌsfɪ(ə)r/ a larval form constituting a stage in the development of most molluscs and of certain worms, esp. marine annelids, characterized by a spheroidal body with a ring of cilia; also attributive. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [noun] > member of trochosphere1883 trochozoon1890 the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [adjective] > relating to or having form of a trochosphere trochosphere1883 trochospheric1899 the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > mollusc or shell-fish > larva veliger1877 trochosphere1883 1883 E. R. Lankester in Encycl. Brit. XVI. 648/1 [In the Limpet the] Diblastula..acquires a ciliated band, and becomes a nearly spherical Trochosphere. 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 454 The Mollusca with the exception of Cephalopoda pass through a typical larval development, in two stages—a Trochosphere and a Veliger stage. trochospheric adj. Brit. /ˌtrɒkə(ʊ)ˈsfɛrɪk/ , /ˌtrɒkə(ʊ)ˈsfɪərɪk/ , U.S. /ˌtrɑkoʊˈsfɪrɪk/ , /ˌtrɑkəˈsfɪrɪk/ , /ˌtrɑkoʊˈsfɛrɪk/ , /ˌtrɑkəˈsfɛrɪk/ = trochospherical adj. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [adjective] > relating to or having form of a trochosphere trochosphere1883 trochospheric1899 1899 New Sydenham Soc. Lexicon Trochospheric. trochospherical adj. Brit. /ˌtrɒkə(ʊ)ˈsfɛrᵻkl/ , U.S. /ˌtrɑkoʊˈsfɪrək(ə)l/ , /ˌtrɑkoʊˈsfɛrək(ə)l/ pertaining to or having the form of a trochosphere. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > relating to larval stage trochospherical1891 1891 Cent. Dict. Trochospherical. trochozoon n. Brit. /ˌtrɒkə(ʊ)ˈzəʊən/ , /ˌtrɒkə(ʊ)ˈzəʊɒn/ , U.S. /ˌtrɑkəˈzoʊˌɑn/ one of the Trochozoa, a collective term for those molluscs, annelids, etc. which pass through a trochosphere larval stage, or for such larvæ; also for a hypothetical ancestral group of animals from which these are assumed to be derived. [After scientific Latin Trochozoon (1877 or earlier).] ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > Trochozoa > [noun] > member of trochosphere1883 trochozoon1890 1890 Nature 22 May 94/1 The author's conclusions are, that the Balanoglossus..has originated from a trochozoon which acquired some features in common with worms. This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2022). < comb. form1878
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