请输入您要查询的英文单词:

 

单词 octastichous
释义

octastichousadj.

Brit. /ɒkˈtastɪkəs/, U.S. /ɑkˈtæstəkəs/
Forms: 1800s– octastichous, 1800s– octostichous.
Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ὀκτάστιχος , -ous suffix.
Etymology: < Byzantine Greek ὀκτάστιχος of eight verses (see octastich n.) + -ous suffix; compare -stichous comb. form. Compare earlier octastich n.On the form in octo- see discussion s.v. octa- comb. form.
Botany. Now rare.
Designating or relating to a spiral arrangement of leaves in which there are eight leaves in each turn of the spiral about the stem, and thus eight vertical rows of leaves in the phyllotaxis.
ΘΚΠ
the world > plants > part of plant > leaf > plant defined by leaves > [adjective] > having leaves in particular arrangement
opposite-leaved1798
cross-leaved1860
octastichous1861
1861 R. Bentley Man. Bot. i. iii. 140 A fourth variety of Phyllotaxis..is the octastichous or eight-ranked.
1880 A. Gray Struct. Bot. 124 Octostichous, or Eight-ranked..occurs in the Holly, Aconite.
1936 Bull. Torrey Bot. Club 63 139 The normal leaf arrangement or system in Ailanthus is octostichous or eight-ranked.
?1982 Indian Jrnl. Genetics & Plant Breeding 1981 41 285 In both the jute species.., the phyllotaxy was generally of the octastichous type.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
<
adj.1861
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/25 9:25:32