polystomatousadj.

Brit.

/ˌpɒlɪˈstəʊmətəs/,

/ˌpɒlɪˈstɒmətəs/, U.S.

/ˌpɑliˈstoʊmədəs/,

/ˌpɑliˈstɑmədəs/

Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: poly- comb. form, -stomatous comb. form.

Etymology: < poly- comb. form + -stomatous comb. form. With the use in quot. 1825 compare French polystome (1813 or earlier with reference to a volcano, now obsolete in this sense; now only in zoological use (1869 in this sense: see polystome adj.)). In quot. 1841 probably after French polystomées, plural noun (1834 or earlier with reference to medusae); compare scientific Latin Polystomata (1813 or earlier). Compare polystomous adj., which is attested earlier in zoological use.

Chiefly Zoology.

Having or characterized by several mouths or openings.

ΘΚΠ

the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective]

polystomatous1825

polystomous1848

polystome1859

poriferal1877

poriferan1877

leuconoid1894

the world > animals > animal body > general parts > head and neck > [adjective] > having many mouths

polystomatous1825

polystomous1848

polystome1859

the world > animals > invertebrates > protozoa > class Infusoria > subclass Suctoria > [adjective] > belonging to family Acinetidae

polystomatous1825

polystomous1848

polystome1859

1825 G. P. Scrope Considerations on Volcanos 178 A polystomalous [sic] volcanic cone rising from the depth of the sea.

1841 Penny Cycl. XIX. 119/1 This peduncle, terminated by more or less numerous capillaceous divisions, has caused the name of Pedunculated or Polystomatous to be applied to those Medusæ which are provided with it.

1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 137 The polystomatous condition thus brought about..is obviously quite different..from that which occurs in the Porifera.

1940 T. J. Parker & W. A. Haswell Text-bk. Zool. (ed. 6) I. 173 We thus get a polystomatous or many-mouthed condition which is practically unique in the animal kingdom.

1991 Netherlands Jrnl. Zool. 41 112 In at least one polystomatous species, the onset of secondary mouths starts in an earlier ontogenetic stage than in its oligostomatous sister species.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polystomatous
释义	polystomatousadj. Brit. /ˌpɒlɪˈstəʊmətəs/, /ˌpɒlɪˈstɒmətəs/, U.S. /ˌpɑliˈstoʊmədəs/, /ˌpɑliˈstɑmədəs/ Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: poly- comb. form, -stomatous comb. form. Etymology: < poly- comb. form + -stomatous comb. form. With the use in quot. 1825 compare French polystome (1813 or earlier with reference to a volcano, now obsolete in this sense; now only in zoological use (1869 in this sense: see polystome adj.)). In quot. 1841 probably after French polystomées, plural noun (1834 or earlier with reference to medusae); compare scientific Latin Polystomata (1813 or earlier). Compare polystomous adj., which is attested earlier in zoological use. Chiefly Zoology. Having or characterized by several mouths or openings. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] polystomatous1825 polystomous1848 polystome1859 poriferal1877 poriferan1877 leuconoid1894 the world > animals > animal body > general parts > head and neck > [adjective] > having many mouths polystomatous1825 polystomous1848 polystome1859 the world > animals > invertebrates > protozoa > class Infusoria > subclass Suctoria > [adjective] > belonging to family Acinetidae polystomatous1825 polystomous1848 polystome1859 1825 G. P. Scrope Considerations on Volcanos 178 A polystomalous [sic] volcanic cone rising from the depth of the sea. 1841 Penny Cycl. XIX. 119/1 This peduncle, terminated by more or less numerous capillaceous divisions, has caused the name of Pedunculated or Polystomatous to be applied to those Medusæ which are provided with it. 1877 T. H. Huxley Man. Anat. Invertebrated Animals iii. 137 The polystomatous condition thus brought about..is obviously quite different..from that which occurs in the Porifera. 1940 T. J. Parker & W. A. Haswell Text-bk. Zool. (ed. 6) I. 173 We thus get a polystomatous or many-mouthed condition which is practically unique in the animal kingdom. 1991 Netherlands Jrnl. Zool. 41 112 In at least one polystomatous species, the onset of secondary mouths starts in an earlier ontogenetic stage than in its oligostomatous sister species. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < adj.1825
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