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单词 proctodeal
释义

proctodealadj.

Brit. /ˌprɒktə(ʊ)ˈdiːəl/, U.S. /ˌprɑktəˈdiəl/
Forms: 1800s– proctodaeal, 1800s– proctodeal.
Origin: Formed within English, by derivation. Etymons: proctodeum n., -al suffix1.
Etymology: < proctodeum n. + -al suffix1.
1. Zoology and Embryology. Of or relating to the proctodeum.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > embryo parts > [adjective] > digestive tract
proctodeal1877
stomodaeal1883
stomatodaeal1893
1877 Q. Jrnl. Microsc. Sci. 17 414 In other cases—the Echinoderms,..Gastropods, and..other animals—it is the anus, with its proctodaeal ingrowth, which adapts itself to the blastopore.
1941 Proc. National Acad. Sci. U.S.A. 27 487 Not all of the primordia..which were carried passively into the proctodeal tube in the early embryo penetrate into the body cavity.
1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) xiii. 437 In marsupials, the cloaca is persistently represented by a slight proctodeal depression, with a sphincter muscle.
1999 Auk 116 184 Males of the Old World quail genus Coturnix are unique among birds in possessing a well-developed proctodeal gland.
2. Entomology. Among social insects: of or relating to the feeding of an insect from the hindgut of another.
ΚΠ
1903 Biol. Bull. 4 62 I have fed a large number of termite colonies..on various kinds and amounts of food—proctodeal food dissected from workers.., stomadeal food from the same sources, [etc.].
1944 R. Matheson Entomol. for Introd. Courses viii. 172 Young termites, soldiers, and queens..are fed by the workers with predigested cellulose (stomodeal food), regurgitated by the workers, or with a semi-liquid food which they obtain from the anus (proctodeal food).
1978 Science 11 Aug. 541/2 I report here the first observation of such proctodeal feeding by a termitophile.
1990 Behavioral Ecol. & Sociobiol. 26 389 Males [sc. termites] transferred proctodeal pellets (food derived from the hindgut intestine) to their mates significantly more often than females to males.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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adj.1877
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