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单词 uniramia
释义

Uniramian.

Brit. /ˌjuːnɪˈreɪmɪə/, U.S. /ˌjunəˈreɪmiə/
Origin: A borrowing from Latin. Etymon: Latin Uniramia.
Etymology: < scientific Latin Uniramia (see quot. 1972) < classical Latin ūni- uni- comb. form + rāmus branch (see ramus n.) + -ia -ia suffix2. Compare earlier uniramous adj. at uni- comb. form 1a.
Zoology.
With plural agreement: a subphylum or phylum of arthropods having unbranched (uniramous) limbs, comprising the insects and myriapods, and formerly (in Manton's original scheme) also the onychophorans. Also: animals of this subphylum or phylum (collectively or individually).Arthropod taxonomy is currently under review and Uniramia is being replaced by other taxa. In schemes that do not include crustaceans in the Mandibulata, the latter is effectively synonymous with Uniramia.
ΚΠ
1972 S. M. Manton in Zool. Jrnl. Linn. Soc. 51 203 A taxon, the Uniramia, is proposed to include the Onychophora–Myriapoda–Hexapoda, the Uniramia ranking as one of the several arthropodan phyla.
1981 Philos. Trans. (Royal Soc.) B. 291 579 The large number of serially homologous trunk somites all bearing similar appendages..also occurs in..the myriapodous Uniramia.
1989 S. J. Gould Wonderful Life (1991) 102 (caption) A giant dragonfly from the Carboniferous, representing the Uniramia.
2001 R. S. K. Barnes et al. Invertebrates (ed. 3) viii. 180/1 The Uniramia probably originated on land and, with the arachnid chelicerates,..they are the dominant land invertebrates.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).
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n.1972
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