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单词 semi-cell
释义

> as lemmas

semi-cell
semi-cell n.
Brit. /ˈsɛmɪsɛl/
,
U.S. /ˈsɛˌmaɪˌsɛl/
,
/ˈsɛmiˌsɛl/
Botany each of the two parts of a cell which is constricted in the middle, as in desmids.
ΚΠ
1872 H. C. Wood Contrib. Hist. Freshwater Algæ 101 Divided into two symmetrical semi~cells.
1882–4 M. C. Cooke Brit. Fresh-water Algæ I. 74 Variable in form, usually constricted in the middle, so as to form two symmetrical semi-cells.
1900 B. D. Jackson Gloss. Bot. Terms Semicell, one half of a Desmid.
1927 G. S. West & F. E. Fritsch Treat. Brit. Freshwater Algae 259 The young semicells are clearly recognisable and nuclear division is complete before any change takes place in the chloroplasts of the parent.
1969 F. E. Round Introd. Lower Plants ii. 27 Each mature semicell is ornamented or produced into spines and looked at from the apices is constructed on a bilateral..or triangular basis.
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