petaloidadj.n.

Brit.

/ˈpɛtl̩ɔɪd/, U.S.

/ˈpɛdlˌɔɪd/

Origin: Formed within English, by derivation. Etymons: petal n., -oid suffix.

Etymology: < petal n. + -oid suffix. Compare French pétaloïde (1763–5). With sense A. 1b compare scientific Latin Petaloideae, former division name.

A. adj.

1. Botany.

a. Of the nature of or resembling a petal; spec. designating parts of a flower, esp. stamens, sepals, or tepals, when they are brightly coloured (not green) and have a form and texture like those of a petal (as a normal or abnormal phenomenon; cf. petalodic adj.); (also) designating a perianth whorl or perianth composed of such parts.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having petals

foliaceous1658

monopetalous1687

pentapetalous1687

polypetalous1687

hose-in-hose1688

monopetalose1693

pentapetalose1693

tetrapetalose1694

tetrapetalous1697

tripetalose1698

tripetalous1704

hexapetalous1707

petalous1719

petaloid1720

planipetalous1730

petaline1783

petaliform1788

petalled1793

polypetal1803

hexapetaloid1813

hexapetaloideous1830

tripetaloid1830

tripetaloideous1830

unipetalous1831

petaliferous1847

macropetalous1857

sympetalous1870

apopetalous1875

anisopetalous1880

petally1888

thread-petalled1899

thousand-petalled1951

decapetalous-

synpetalous-

1720 P. Blair Bot. Ess. iii. 189 From whence he concludes, that no apetalous can be a perfect Flower, since the only Fence of a Flower consists in its being petaloid.

1731 Philos. Trans. 1729–30 (Royal Soc.) 36 463 Where the Tube expanded itself, it divided into more than forty petaloid Segments.

1845 J. Lindley School Bot. (1858) iv. 25 Flowers unsymmetrical, with 2 petaloid and 3 herbaceous sepals.

1857 A. Henfrey Elem. Course Bot. 108 A large number of the Monocotyledonous orders possess a petaloid perianth; that is, there are two circles of petaloid organs, which..have the appearance of a single hexamerous whorl.

1882 Nature 27 July 300/2 All stamens show a great tendency easily to become petaloid.

1914 F. E. Fritsch & E. J. Salisbury Introd. Study Plants xxi. 270 Each flower has a petaloid (i.e. coloured) perianth composed of a large hood-like posterior member.

1970 R. Gorer Devel. Garden Flowers ii. 44 The numerous stamens [of double paeonies] become petaloid, sometimes resembling closely the true petals and sometimes becoming quill-like to give an anemone-centred effect.

1992 M. Ingrouille Diversity & Evol. Land Plants 153 In Iris they [sc. the stigmas] are petaloid.

b. Designating monocotyledons having flowers with petaloid perianth parts.Such plants were formerly regarded as constituting a division Petaloideae.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > flower or flowering plant > [adjective] > characterized by parts or form > characterized by petals

petaloid1836

1836 Penny Cycl. V. 248 Under the name of Asphodels he [sc. Lobel] grouped the principal part of modern petaloid monocotyledons.

1864 D. Oliver Lessons Elem. Bot. i. 58 Monocotyledons..with a perianth of petal-like leaves, hence called..Petaloid (Petaloideæ).

1951 Dict. Gardening (Royal Hort. Soc.) III. 1358/2 It [sc. the nectary] may be..on the carpels as in many of the petaloid Monocotyledons.

2002 Daily Tel. 5 July 27/3 It was the petaloid monocots (loosely known as ‘bulbs’) belonging to the Lily, Iris and Amaryllis families that interested him the most.

2. Zoology. Designating a part of an animal thought to resemble a petal or leaf; spec. designating the ambulacra of some irregular echinoids, adapted for gas exchange, in which each double row of pores diverges and then converges, so that the complete set forms a pattern resembling a five-petalled flower on the upper surface of the shell.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > relating to or resembling sea-urchin > of parts of > of petaloid ambulacra

petaloidal1822

petaloid1837

1837 Penny Cycl. IX. 259/1 Species [of Echinidæ] whose ambulacra are petaloid, going from a centre.

1859 Philos. Trans. 1858 (Royal Soc.) 148 312 Each petaloid spiculum is slender at its proximal termination, and continues to be so until near its distal end, where it expands laterally.

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 558 Fascioles surrounding the petaloid ambulacra.

1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) viii. 207 Clypeastroida, in which the jaws are very powerful, and the ambs tend to be petaloid, but there are no compound plates.

1990 C. Pellant Rocks, Minerals & Fossils 139/1 The central position of the mouth and anus changes and the ambulacra become shorter and petaloid.

3. Cultural Anthropology and Archaeology. Shaped like a petal or leaf; spec. designating stone celts typically found on islands of the Caribbean.

ΚΠ

1899 Ann. Rep. Smithsonian Inst. 46 A collection of Jamaican antiquities by MacCormack, including 160 specimens of ancient stone implements, earthenware, etc., and 20 petaloid instruments.

1903 Amer. Anthropologist 5 377 The peculiar petaloid stone celts vary in form, size, and material, and number several hundred.

1950 Amer. Antiquity 15 341/1 Several petaloid stone celts have been obtained on the surface of the ground in the vicinity.

1981 Amer. Jrnl. Archaeol. 85 73/2 The most frequent of these elements are J- and S-spirals, and petaloid loops are also often found.

2000 Jrnl. Field Archaeol. 7 424/1 The site's non-local materials, consisting of large-bodied decorated ceramic vessels, small, polished greenstone petaloid axes,..and diorite beads suggest trade and exchange with the Greater Antilles and possibly Central America.

B. n.

Botany. A petaloid flower part; spec. a flower part exhibiting petalody.

ΘΚΠ

the world > plants > appearance of plant > form of plant or that has parts of particular shape > [noun]

heart1597

window plant1838

growth-form1887

parasol1934

petaloid1945

multiflora1972

1945 Amer. Jrnl. Bot. 32 54/1 These trees had occasional flowers with 1–3 extra petals or petaloids.

1977 Illustr. Dict. Bot. 83/2 at Double Flowers Quite often a mutation occurs and most if not all of the stamens are transformed into petal-like structures (petaloids).

1992 Countryside Mar. 22/2 Some have a rough pom-pom of petaloids at the center.

Derivatives

† petaloidal adj. Obsolete = sense A. (in quots. only in Zoology).

ΘΚΠ

petaloidal1822

petaloid1837

1822 J. Parkinson Outl. Oryctol. 123 Each pair [of ambulacra] forming a petaloidal figure.

1872 H. A. Nicholson Man. Palæontol. 109 Ambulacra composed of simple pores, not petaloidal.

petaˈloideous adj. Botany rare = A. 1.

ΚΠ

1886 Bot. Gaz. 11 46 Abolition of the Spadiceous, Petaloideous and Glumaceous Divisions in the key is good.

1928 Bull. Torrey Bot. Club 55 480 Hutchinson assumes that the primitive angiospermous flower was bisporangiate, apocarpous, and with a petaloideous perianth.

ˈpetaloidy n. Botany = petalody n.

ΚΠ

1923 New Phytologist 22 176 In plants may be mentioned: sterile anthers; petaloidy in flowers; the absence of chlorophyll.

1962 Amer. Jrnl. Bot. 49 574/1 The ‘Marglobe’ mutant..has not developed petaloidy.

2002 Euphytica 127 353 We have developed a series of mitochondria-specific PCR markers to distinguish cytoplasms inducing petaloidy..and male-fertility.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	petaloid
释义	petaloidadj.n. Brit. /ˈpɛtl̩ɔɪd/, U.S. /ˈpɛdlˌɔɪd/ Origin: Formed within English, by derivation. Etymons: petal n., -oid suffix. Etymology: < petal n. + -oid suffix. Compare French pétaloïde (1763–5). With sense A. 1b compare scientific Latin Petaloideae, former division name. A. adj. 1. Botany. a. Of the nature of or resembling a petal; spec. designating parts of a flower, esp. stamens, sepals, or tepals, when they are brightly coloured (not green) and have a form and texture like those of a petal (as a normal or abnormal phenomenon; cf. petalodic adj.); (also) designating a perianth whorl or perianth composed of such parts. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having petals foliaceous1658 monopetalous1687 pentapetalous1687 polypetalous1687 hose-in-hose1688 monopetalose1693 pentapetalose1693 tetrapetalose1694 tetrapetalous1697 tripetalose1698 tripetalous1704 hexapetalous1707 petalous1719 petaloid1720 planipetalous1730 petaline1783 petaliform1788 petalled1793 polypetal1803 hexapetaloid1813 hexapetaloideous1830 tripetaloid1830 tripetaloideous1830 unipetalous1831 petaliferous1847 macropetalous1857 sympetalous1870 apopetalous1875 anisopetalous1880 petally1888 thread-petalled1899 thousand-petalled1951 decapetalous- synpetalous- 1720 P. Blair Bot. Ess. iii. 189 From whence he concludes, that no apetalous can be a perfect Flower, since the only Fence of a Flower consists in its being petaloid. 1731 Philos. Trans. 1729–30 (Royal Soc.) 36 463 Where the Tube expanded itself, it divided into more than forty petaloid Segments. 1845 J. Lindley School Bot. (1858) iv. 25 Flowers unsymmetrical, with 2 petaloid and 3 herbaceous sepals. 1857 A. Henfrey Elem. Course Bot. 108 A large number of the Monocotyledonous orders possess a petaloid perianth; that is, there are two circles of petaloid organs, which..have the appearance of a single hexamerous whorl. 1882 Nature 27 July 300/2 All stamens show a great tendency easily to become petaloid. 1914 F. E. Fritsch & E. J. Salisbury Introd. Study Plants xxi. 270 Each flower has a petaloid (i.e. coloured) perianth composed of a large hood-like posterior member. 1970 R. Gorer Devel. Garden Flowers ii. 44 The numerous stamens [of double paeonies] become petaloid, sometimes resembling closely the true petals and sometimes becoming quill-like to give an anemone-centred effect. 1992 M. Ingrouille Diversity & Evol. Land Plants 153 In Iris they [sc. the stigmas] are petaloid. b. Designating monocotyledons having flowers with petaloid perianth parts.Such plants were formerly regarded as constituting a division Petaloideae. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > flower or flowering plant > [adjective] > characterized by parts or form > characterized by petals petaloid1836 1836 Penny Cycl. V. 248 Under the name of Asphodels he [sc. Lobel] grouped the principal part of modern petaloid monocotyledons. 1864 D. Oliver Lessons Elem. Bot. i. 58 Monocotyledons..with a perianth of petal-like leaves, hence called..Petaloid (Petaloideæ). 1951 Dict. Gardening (Royal Hort. Soc.) III. 1358/2 It [sc. the nectary] may be..on the carpels as in many of the petaloid Monocotyledons. 2002 Daily Tel. 5 July 27/3 It was the petaloid monocots (loosely known as ‘bulbs’) belonging to the Lily, Iris and Amaryllis families that interested him the most. 2. Zoology. Designating a part of an animal thought to resemble a petal or leaf; spec. designating the ambulacra of some irregular echinoids, adapted for gas exchange, in which each double row of pores diverges and then converges, so that the complete set forms a pattern resembling a five-petalled flower on the upper surface of the shell. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > relating to or resembling sea-urchin > of parts of > of petaloid ambulacra petaloidal1822 petaloid1837 1837 Penny Cycl. IX. 259/1 Species [of Echinidæ] whose ambulacra are petaloid, going from a centre. 1859 Philos. Trans. 1858 (Royal Soc.) 148 312 Each petaloid spiculum is slender at its proximal termination, and continues to be so until near its distal end, where it expands laterally. 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 558 Fascioles surrounding the petaloid ambulacra. 1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) viii. 207 Clypeastroida, in which the jaws are very powerful, and the ambs tend to be petaloid, but there are no compound plates. 1990 C. Pellant Rocks, Minerals & Fossils 139/1 The central position of the mouth and anus changes and the ambulacra become shorter and petaloid. 3. Cultural Anthropology and Archaeology. Shaped like a petal or leaf; spec. designating stone celts typically found on islands of the Caribbean. ΚΠ 1899 Ann. Rep. Smithsonian Inst. 46 A collection of Jamaican antiquities by MacCormack, including 160 specimens of ancient stone implements, earthenware, etc., and 20 petaloid instruments. 1903 Amer. Anthropologist 5 377 The peculiar petaloid stone celts vary in form, size, and material, and number several hundred. 1950 Amer. Antiquity 15 341/1 Several petaloid stone celts have been obtained on the surface of the ground in the vicinity. 1981 Amer. Jrnl. Archaeol. 85 73/2 The most frequent of these elements are J- and S-spirals, and petaloid loops are also often found. 2000 Jrnl. Field Archaeol. 7 424/1 The site's non-local materials, consisting of large-bodied decorated ceramic vessels, small, polished greenstone petaloid axes,..and diorite beads suggest trade and exchange with the Greater Antilles and possibly Central America. B. n. Botany. A petaloid flower part; spec. a flower part exhibiting petalody. ΘΚΠ the world > plants > appearance of plant > form of plant or that has parts of particular shape > [noun] heart1597 window plant1838 growth-form1887 parasol1934 petaloid1945 multiflora1972 1945 Amer. Jrnl. Bot. 32 54/1 These trees had occasional flowers with 1–3 extra petals or petaloids. 1977 Illustr. Dict. Bot. 83/2 at Double Flowers Quite often a mutation occurs and most if not all of the stamens are transformed into petal-like structures (petaloids). 1992 Countryside Mar. 22/2 Some have a rough pom-pom of petaloids at the center. Derivatives † petaloidal adj. Obsolete = sense A. (in quots. only in Zoology). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > relating to or resembling sea-urchin > of parts of > of petaloid ambulacra petaloidal1822 petaloid1837 1822 J. Parkinson Outl. Oryctol. 123 Each pair [of ambulacra] forming a petaloidal figure. 1872 H. A. Nicholson Man. Palæontol. 109 Ambulacra composed of simple pores, not petaloidal. petaˈloideous adj. Botany rare = A. 1. ΚΠ 1886 Bot. Gaz. 11 46 Abolition of the Spadiceous, Petaloideous and Glumaceous Divisions in the key is good. 1928 Bull. Torrey Bot. Club 55 480 Hutchinson assumes that the primitive angiospermous flower was bisporangiate, apocarpous, and with a petaloideous perianth. ˈpetaloidy n. Botany = petalody n. ΚΠ 1923 New Phytologist 22 176 In plants may be mentioned: sterile anthers; petaloidy in flowers; the absence of chlorophyll. 1962 Amer. Jrnl. Bot. 49 574/1 The ‘Marglobe’ mutant..has not developed petaloidy. 2002 Euphytica 127 353 We have developed a series of mitochondria-specific PCR markers to distinguish cytoplasms inducing petaloidy..and male-fertility. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < adj.n.1720
随便看	hit the trail hit the trail less commonly the etc hit the trail less commonly the grit hit the trail less commonly the pike hit the trail less commonly the road hit the wall hit to leg hit to the leg hit under the wing hit up hit up for hit with the meat hit, split or take the breeze hit-and-miss governor hit-and-miss ventilator hit-in hit-man hit-mark hit-run hit-wicket hitandmiss governor hitandmiss ventilator hitch hitch a lift hitch and kick