| 释义 |
vasiform, a.|ˈveɪzɪfɔːm|
[f. L. vāsi- vas + -form.]
1. Having the form of a duct or similar conveying vessel; tubular.
a. Phys.1835–6Todd's Cycl. Anat. I. 245/2 The blood [of Cirripeds]..is propelled by a dorsal vasiform heart. 1839–47Ibid. III 365/2 The systemic heart first appears in the sessile Tunicaries as a vasiform undivided ventricle. 1861Hulme tr. Moquin-Tandon ii. v. ii. 261 The secreting glands are..vasiform tortuous tubes. 1870Rolleston Anim. Life 98 The more elongated and vasiform heart.
b. Bot.1839Lindley Introd. Bot. (ed. 3) 21 Of Pitted Tissue, or Bothrenchyma... Vasiform Tissue, Dotted Ducts. 1866Treas. Bot. 1205/1 Vasiform tissue, ducts, that is tubes having the appearance of spiral vessels and bothrenchyma. 1885G. L. Goodale Physiol. Bot. (1892) 87 Vasiform elements.
2. Shaped like a vase.
1846Dana Zooph. (1848) 433, i. The mode of growth:..spreading each way from a central pedicel, and concave above (vasiform, or vase shape). 1882Garden 1 Apr. 212/2 The flowers..form a vasiform tuft. |