monotrochaladj.

Brit.

/məˈnɒtrəkl/, U.S.

/məˈnɑtrək(ə)l/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Monotrocha , -al suffix¹.

Etymology: < scientific Latin Monotrocha, former group name (C. G. Ehrenberg Organisation, Systematik u. geogr. Verhältniss der Infusionsthierchen (1830) 64; < medieval Greek or Byzantine Greek μονότροχος : see monotroch n.) + -al suffix¹. Compare earlier monotrochous adj., slightly later monotrochian adj., and also earlier polytrochal adj.

Zoology.

Of a trochophore larva: having a single band or ring of cilia round the body.

ΘΚΠ

the world > life > biology > physical aspects or shapes > villosity or ciliation > [adjective] > hairiness > having cilia > having single band of

monotrochousa1836

monotrochal1886

the world > animals > animal body > general parts > covering or skin > [adjective] > having a coat > hairy, furry, or woolly > having a single band of cilia

monotrochousa1836

monotrochal1886

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [adjective] > belonging to class Chaetopoda > belonging to order Polychaeta > having zone of cilia > having single band of cilia

monotrochousa1836

monotrochal1886

1886 Encycl. Brit. XXI. 8/1 A monotrochal polychætous larva.

1909 Q. Jrnl. Microsc. Sci. 53 599 A larva is said to be monotrochal when only the ‘preoral’ ciliated band is present.

1978 Bull. Marine Biol. Station Asamushi 16 64 The monotrochal trochophores develop after 24 hours... The long apical tuft of cilia grow from the apex, but the metatroch is not observed.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	monotrochal
释义	monotrochaladj. Brit. /məˈnɒtrəkl/, U.S. /məˈnɑtrək(ə)l/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin Monotrocha , -al suffix¹. Etymology: < scientific Latin Monotrocha, former group name (C. G. Ehrenberg Organisation, Systematik u. geogr. Verhältniss der Infusionsthierchen (1830) 64; < medieval Greek or Byzantine Greek μονότροχος : see monotroch n.) + -al suffix¹. Compare earlier monotrochous adj., slightly later monotrochian adj., and also earlier polytrochal adj. Zoology. Of a trochophore larva: having a single band or ring of cilia round the body. ΘΚΠ the world > life > biology > physical aspects or shapes > villosity or ciliation > [adjective] > hairiness > having cilia > having single band of monotrochousa1836 monotrochal1886 the world > animals > animal body > general parts > covering or skin > [adjective] > having a coat > hairy, furry, or woolly > having a single band of cilia monotrochousa1836 monotrochal1886 the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [adjective] > belonging to class Chaetopoda > belonging to order Polychaeta > having zone of cilia > having single band of cilia monotrochousa1836 monotrochal1886 1886 Encycl. Brit. XXI. 8/1 A monotrochal polychætous larva. 1909 Q. Jrnl. Microsc. Sci. 53 599 A larva is said to be monotrochal when only the ‘preoral’ ciliated band is present. 1978 Bull. Marine Biol. Station Asamushi 16 64 The monotrochal trochophores develop after 24 hours... The long apical tuft of cilia grow from the apex, but the metatroch is not observed. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < adj.1886
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