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单词 univoltine
释义

univoltinen.adj.

Etymology: < French univoltin, -tain, < uni- uni- comb. form + Italian volta turn, time.Previous versions of the OED give the stress as: uniˈvoltine.
A. n.
One of a breed of silkworms which produces a single brood in a year.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Insecta > Heterocera > [noun] > family Bombycidae > genus Bombyx > silk moth > caterpillar of bombyx mori or silkworm > characterized by number of broods
bivoltine1872
univoltine1872
quadrivoltine1888
trivoltin1888
polyvoltine1890
1872 J. Geoghegan Silk in India xi. 126 That this insect [sc. a silkworm] has quite changed its period of existence.., and from a multivoltine become a uniovoltine [sic].
B. adj.
Having but one brood each year.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > [adjective] > reproducing specific number of times > in a year
polygoneutic1875
univoltine1883
1883 G. Watt Econ. Products India iii. 66 In Upper India and in Kashmir the univoltine worms are those usually reared.
1892 Chambers's Encycl. IX. 453/1 The B[ombyx] mori is univoltine or annual.
This entry has not yet been fully updated (first published 1924; most recently modified version published online June 2019).
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n.adj.1872
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更新时间:2024/12/22 22:57:55