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单词 preaxal
释义

preaxaladj.

Origin: Formed within English, by derivation. Etymons: pre- prefix, axon n., -al suffix1.
Etymology: < pre- prefix + ax- (in axon n.) + -al suffix1. Compare earlier preaxial adj., and also earlier axal adj.
Anatomy. Obsolete. rare.
In the terminology of B. G. Wilder: located anterior or superior to the axon; = prechordal adj. 1. Cf. preaxial adj.
ΚΠ
1887 B. G. Wilder in Amer. Naturalist 21 914 (table) Polycœlia (encephalocœle segmented; neuron partly preaxal; axon vertebrated).
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online June 2018).
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adj.1887
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