单词 | truncus |
释义 | truncusn. 1. Anatomy. The trunk or main stem of a vessel or nerve. ΘΚΠ the world > life > the body > vascular system > blood vessel > [noun] > main master-veinc1425 mastering vein1605 truncus1693 main line1931 the world > life > the body > nervous system > nerve > parts of nerves > [noun] > main part truncus1693 nerve stem1856 1693 tr. S. Blankaart Physical Dict. (ed. 2) 203 Truncus, in general..that part of the great Artery and Vena Cava, which descends from the Heart..more especially..those Branches which are sent from the great Trunk to the Viscera. 1875 T. H. Huxley & H. N. Martin Course Elem. Biol. (1883) 177 As the truncus becomes more and more distended, the longitudinal valve..tends more and more completely to shut off the openings of the pulmonary arteries. 2. Zoology. The trunk or body of an animal, without the head, limbs, and tail; in Entomology the thorax. ΘΚΠ the world > animals > animal body > general parts > body and limbs > [noun] > torso truncus1706 trunk1870 the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > thorax truncus1706 corslet1753 alitrunk1826 trunk1826 1706 Phillips's New World of Words (new ed.) Truncus, (Lat.)..a Body without a Head. 3. Botany. The trunk or stem of a tree. ΘΚΠ the world > plants > part of plant > part of tree or woody plant > [noun] > stem, trunk, or bole stovenc1000 bolec1314 bodyc1330 stock1340 shaft1398 stealc1440 truncheonc1449 trunk1490 stud1579 leg1597 butt1601 truncus1706 stam1839 1706 Phillips's New World of Words (new ed.) Truncus, (Lat.) the Stem or Stock of a Tree without the Boughs. This entry has not yet been fully updated (first published 1915; most recently modified version published online September 2018). < |
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