nemato-comb. form

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

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek νήματ- , νῆμα , -o- connective.

Etymology: < ancient Greek νήματ-, νῆμα thread ( < νεῖν to spin, cognate with classical Latin nēre (see needle n.) + -μα : see -oma comb. form) + -o- connective.English formations are found from the mid 19th cent. (e.g. nematopode n., nematoid adj., nematophore n.), the earliest examples being after models in post-classical Latin or scientific Latin. Compare also French némato- and German nemato-, formations in both of which are found from the 19th cent. The position of the stress differs between compounds of nemato- in accordance with the general stress patterns of English. Contrastive stress may also give rise contextually to primary stress on the first syllable of the prefix in compounds where the stress ordinarily falls elsewhere.

Chiefly Biology.

1. Forming terms with the sense ‘having, relating to, or of the nature of a thread-like structure’.

nematoblast n.

Brit.

/ˈnɛmətə(ʊ)blɑːst/

/ˈnɛmətə(ʊ)blast/

/ˈniːmətə(ʊ)blɑːst/

/ˈniːmətə(ʊ)blast/

/nᵻˈmatə(ʊ)blɑːst/

/nᵻˈmatə(ʊ)blast/

U.S.

/ˈnɛmədəˌblæst/

/ˈnimədəˌblæst/

/nəˈmædəˌblæst/

[in sense (a) after Italian nematoblasto (E. Sertoli 1878, in Archivio per le scienze med. (Torino) 2 125)] †(a) a spermatocyte; (b) a cell that is a precursor of a nematocyte (cf. cnidoblast n. at cnida n.).

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [noun] > embryo tissue

blastema1849

nematoblast1885

neuroepithelium1889

scleroblastema1934

1885 Q. Jrnl. Microsc. Sci. 25 363 ‘Nematoblasts’..are small cells produced by the division of the preceding generation of seminiferous cells, and destined to develop into spermatozoa.

1944 Q. Rev. Biol. 19 232/2 The mechanism of polar capsule formation offered many analogies with that which has been observed by Bedot in the nematoblasts of certain coelenterates.

1965 V. Kiortsis & H. A. L. Trampusch Regeneration in Animals p. xxiv Tardent shows that differentiated cells (nematoblasts) can continue to divide in vitro and so presumably also in vivo.

1998 Development 125 1637 In adult polyps, prdl-b is a marker for synchronously dividing nematoblasts.

† nematoceratous adj. [after scientific Latin Nematocerata (1834 or earlier), family name (after French Nématocères , plural noun ( A. M. C. Duméril Zool. analytique (1806) 273); compare -cerous comb. form)] Entomology Obsolete rare belonging to a (former) family Nematocerata of lepidopterous insects characterized by the possession of filiform antennae.Apparently only attested in dictionaries or glossaries.

ΚΠ

1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Nematoceratus, applied by Dumeril to a family..of the Lepidoptera, comprehending those that have the antennæ nearly filiform: nematoceratous.

nematocyte n.

Brit.

/ˈnɛmətə(ʊ)sʌɪt/

/ˈniːmətə(ʊ)sʌɪt/

/nᵻˈmatə(ʊ)sʌɪt/

U.S.

/ˈnɛmədəˌsaɪt/

/ˈnimədəˌsaɪt/

/nəˈmædəˌsaɪt/

Zoology a cell containing a nematocyst.

ΚΠ

1904 Proc. Royal Soc. 1903–4 72 477 The discharge..cannot be directly due to the contraction of the nematocytes.

1965 P. Tardent in V. Kiortsis & H. A. L. Trampusch Regeneration in Animals 93 Old culture medium promotes differentiation of the nematoblasts although the process has never led to completion of functional nematocytes.

1997 Proc. National Acad. Sci. U.S.A. 94 1244/2 It had no effect on the dividing nematoblasts, which are early differentiation intermediates in the nematocyte pathway.

† nematoneurose adj. Zoology Obsolete rare = nematoneurous adj.

ΘΚΠ

the world > animals > invertebrates > Radiata > [adjective] > of or relating to Nematoneura

nematoneurous1835

nematoneurose1842

1842 T. R. Jones in Todd's Cycl. Anat. & Physiol. III. 535/1 The Bryozoa..belong to the Nematoneurose type.

† nematoneurous adj. [ < scientific Latin Nematoneura (1835–6 in the source cited in quot.) + -ous suffix] Zoology Obsolete rare of or relating to a group Nematoneura of the Radiata, comprising animals with radial symmetry in which the nerves are readily identifiable (contrasted with the group Acrita).

ΘΚΠ

the world > animals > invertebrates > Radiata > [adjective] > of or relating to Nematoneura

nematoneurous1835

nematoneurose1842

1835 R. Owen in Todd's Cycl. Anat. & Physiol. I. 47/2 The difference in the condition of the digestive system between the Acrite and Nematoneurous classes is still more striking.

1849 Westm. & Foreign Q. Rev. 50 492 The eye-witnesses are confined to some two thousand mariners or countrymen who have no acquaintance with the terms nematoneurous, homogangliatous, and the like.

† nematothecious adj. [compare post-classical Latin naematothecius (C. H. Persoon Synopsis Methodica Fungorum (1801) p. xix)] Mycology Obsolete rare of or belonging to a group of fungi that are composed of filaments (hyphal strands).Apparently only attested in dictionaries or glossaries.

ΚΠ

1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Nematothecius,..nematothecious.

† nematothecous adj. Mycology Obsolete rare = nematothecious adj.Apparently only attested in dictionaries or glossaries.

ΚΠ

1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Nematothecus,..nematothecous.

† nematozooid n. Zoology Obsolete rare a nematocyst-bearing filament of a siphonophore, regarded as a zooid.Apparently only attested in dictionaries or glossaries.

ΚΠ

1890 Cent. Dict. Nematozoöid.

Categories »

2. Forming terms relating to nematodes, as nematocide n., nematology n., etc.

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online June 2022).

单词	nemato-
释义	nemato-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Origin: A borrowing from Greek, combined with an English element. Etymons: Greek νήματ- , νῆμα , -o- connective. Etymology: < ancient Greek νήματ-, νῆμα thread ( < νεῖν to spin, cognate with classical Latin nēre (see needle n.) + -μα : see -oma comb. form) + -o- connective.English formations are found from the mid 19th cent. (e.g. nematopode n., nematoid adj., nematophore n.), the earliest examples being after models in post-classical Latin or scientific Latin. Compare also French némato- and German nemato-, formations in both of which are found from the 19th cent. The position of the stress differs between compounds of nemato- in accordance with the general stress patterns of English. Contrastive stress may also give rise contextually to primary stress on the first syllable of the prefix in compounds where the stress ordinarily falls elsewhere. Chiefly Biology. 1. Forming terms with the sense ‘having, relating to, or of the nature of a thread-like structure’. nematoblast n. Brit. /ˈnɛmətə(ʊ)blɑːst/ , /ˈnɛmətə(ʊ)blast/ , /ˈniːmətə(ʊ)blɑːst/ , /ˈniːmətə(ʊ)blast/ , /nᵻˈmatə(ʊ)blɑːst/ , /nᵻˈmatə(ʊ)blast/ , U.S. /ˈnɛmədəˌblæst/ , /ˈnimədəˌblæst/ , /nəˈmædəˌblæst/ [in sense (a) after Italian nematoblasto (E. Sertoli 1878, in Archivio per le scienze med. (Torino) 2 125)] †(a) a spermatocyte; (b) a cell that is a precursor of a nematocyte (cf. cnidoblast n. at cnida n.). ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [noun] > embryo tissue blastema1849 nematoblast1885 neuroepithelium1889 scleroblastema1934 1885 Q. Jrnl. Microsc. Sci. 25 363 ‘Nematoblasts’..are small cells produced by the division of the preceding generation of seminiferous cells, and destined to develop into spermatozoa. 1944 Q. Rev. Biol. 19 232/2 The mechanism of polar capsule formation offered many analogies with that which has been observed by Bedot in the nematoblasts of certain coelenterates. 1965 V. Kiortsis & H. A. L. Trampusch Regeneration in Animals p. xxiv Tardent shows that differentiated cells (nematoblasts) can continue to divide in vitro and so presumably also in vivo. 1998 Development 125 1637 In adult polyps, prdl-b is a marker for synchronously dividing nematoblasts. † nematoceratous adj. [after scientific Latin Nematocerata (1834 or earlier), family name (after French Nématocères , plural noun ( A. M. C. Duméril Zool. analytique (1806) 273); compare -cerous comb. form)] Entomology Obsolete rare belonging to a (former) family Nematocerata of lepidopterous insects characterized by the possession of filiform antennae.Apparently only attested in dictionaries or glossaries. ΚΠ 1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Nematoceratus, applied by Dumeril to a family..of the Lepidoptera, comprehending those that have the antennæ nearly filiform: nematoceratous. nematocyte n. Brit. /ˈnɛmətə(ʊ)sʌɪt/ , /ˈniːmətə(ʊ)sʌɪt/ , /nᵻˈmatə(ʊ)sʌɪt/ , U.S. /ˈnɛmədəˌsaɪt/ , /ˈnimədəˌsaɪt/ , /nəˈmædəˌsaɪt/ Zoology a cell containing a nematocyst. ΚΠ 1904 Proc. Royal Soc. 1903–4 72 477 The discharge..cannot be directly due to the contraction of the nematocytes. 1965 P. Tardent in V. Kiortsis & H. A. L. Trampusch Regeneration in Animals 93 Old culture medium promotes differentiation of the nematoblasts although the process has never led to completion of functional nematocytes. 1997 Proc. National Acad. Sci. U.S.A. 94 1244/2 It had no effect on the dividing nematoblasts, which are early differentiation intermediates in the nematocyte pathway. † nematoneurose adj. Zoology Obsolete rare = nematoneurous adj. ΘΚΠ the world > animals > invertebrates > Radiata > [adjective] > of or relating to Nematoneura nematoneurous1835 nematoneurose1842 1842 T. R. Jones in Todd's Cycl. Anat. & Physiol. III. 535/1 The Bryozoa..belong to the Nematoneurose type. † nematoneurous adj. [ < scientific Latin Nematoneura (1835–6 in the source cited in quot.) + -ous suffix] Zoology Obsolete rare of or relating to a group Nematoneura of the Radiata, comprising animals with radial symmetry in which the nerves are readily identifiable (contrasted with the group Acrita). ΘΚΠ the world > animals > invertebrates > Radiata > [adjective] > of or relating to Nematoneura nematoneurous1835 nematoneurose1842 1835 R. Owen in Todd's Cycl. Anat. & Physiol. I. 47/2 The difference in the condition of the digestive system between the Acrite and Nematoneurous classes is still more striking. 1849 Westm. & Foreign Q. Rev. 50 492 The eye-witnesses are confined to some two thousand mariners or countrymen who have no acquaintance with the terms nematoneurous, homogangliatous, and the like. † nematothecious adj. [compare post-classical Latin naematothecius (C. H. Persoon Synopsis Methodica Fungorum (1801) p. xix)] Mycology Obsolete rare of or belonging to a group of fungi that are composed of filaments (hyphal strands).Apparently only attested in dictionaries or glossaries. ΚΠ 1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Nematothecius,..nematothecious. † nematothecous adj. Mycology Obsolete rare = nematothecious adj.Apparently only attested in dictionaries or glossaries. ΚΠ 1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Nematothecus,..nematothecous. † nematozooid n. Zoology Obsolete rare a nematocyst-bearing filament of a siphonophore, regarded as a zooid.Apparently only attested in dictionaries or glossaries. ΚΠ 1890 Cent. Dict. Nematozoöid. Categories » 2. Forming terms relating to nematodes, as nematocide n., nematology n., etc. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online June 2022). < comb. form1835
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