“monotrochal”的英文意思_释义_用法

单词

monotrochal

释义

monotrochal, a. Zool.|məˈnɒtrəkəl|
[f. mod.L. monotroch-us (Ehrenberg, a. Gr. µονό-τροχος: see prec.) + -al¹.]
a. Belonging to the division Monotrocha of rotifers, in which the trochal disk or ‘wheel’ is single.
b. Having a single band of cilia, as the larva of a polychæte worm.
c. Belonging or pertaining to the division Monotrocha of Hymenoptera, in which the trochanter has but one joint. So monoˈtrochian a. (n. a monotrochal rotifer), moˈnotrochous a.
1845Encycl. Metrop. VII. 266/1 The Wheel Organs are either Monotrochous, i.e. have a simple connected ring of cilia, or [etc.].1854Adams, etc. Man. Nat. Hist. 341 Rotifers... I Order.—Monotrochians (Monotrocha).1886A. G. Bourne in Encycl. Brit. XXI. 8/1 A monotrochal polychætous larva.1890Century Dict., Monotrochian [a. and n.].1895Cambr. Nat. Hist. V. 494 In the stinging Hymenoptera the trochanters are usually of a single piece, and these Insects are called monotrochous.

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