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单词 verticillation
释义

verticillationn.

/vəːtɪsɪˈleɪʃən/
Etymology: < verticillate adj.: see -ation suffix.
The formation of verticils; a verticillate form or structure, a verticil.
ΘΚΠ
the world > plants > part of plant > (defined by) distribution, arrangement, or position > [noun] > verticil or arranged in whorl
rundle1578
verticillus1760
verticil1793
verticillation1830
the world > plants > part of plant > (defined by) distribution, arrangement, or position > [noun] > verticil or arranged in whorl > formation of
verticillation1830
1830 J. Lindley Introd. Nat. Syst. Bot. 297 The degree of verticillation requisite to constitute a calyx.
1843 Penny Cycl. XXVI. 131/2 The tail is rounded..; its verticillations are composed, above, of large tubercles, and below, of flat, quadrangular scales.
1888 Riverside Nat. Hist. I. 167 In the Diadematidæ the spines are hollow, long, and set with rings or verticillations.
This entry has not yet been fully updated (first published 1917; most recently modified version published online March 2018).
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n.1830
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