preheterocercaladj.

Brit.

/ˌpriːhɛt(ə)rə(ʊ)ˈsəːkl/, U.S.

/ˌpriˌhɛdəroʊˈsərk(ə)l/

Origin: Formed within English, by derivation. Etymons: pre- prefix, heterocercal adj.

Etymology: < pre- prefix + heterocercal adj.

Ichthyology. rare.

= protocercal adj. at proto- comb. form 2a.

ΚΠ

1882 Philos. Trans. (Royal Soc.) 173 409 Their tail-fin retains the character of the piscine tail prior to the formation of the ventral caudal lobe, a stage which is repeated embryologically in the pre-heterocercal condition of the tail in ordinary Fishes.

1900 Nature 20 Sept. 506/1 The supposition that it represents the original ‘protocercal’ or preheterocercal stage.

This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).

单词	preheterocercal
释义	preheterocercaladj. Brit. /ˌpriːhɛt(ə)rə(ʊ)ˈsəːkl/, U.S. /ˌpriˌhɛdəroʊˈsərk(ə)l/ Origin: Formed within English, by derivation. Etymons: pre- prefix, heterocercal adj. Etymology: < pre- prefix + heterocercal adj. Ichthyology. rare. = protocercal adj. at proto- comb. form 2a. ΚΠ 1882 Philos. Trans. (Royal Soc.) 173 409 Their tail-fin retains the character of the piscine tail prior to the formation of the ventral caudal lobe, a stage which is repeated embryologically in the pre-heterocercal condition of the tail in ordinary Fishes. 1900 Nature 20 Sept. 506/1 The supposition that it represents the original ‘protocercal’ or preheterocercal stage. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < adj.1882
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