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单词 dysmerism
释义

dysmerismn.

/ˈdɪsmərɪz(ə)m/
Etymology: < Greek δυσ- (dys- prefix) + μερισμός division into parts (merism n.).
Biology.
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The aggregation of unlike or irregularly arranged parts in the formation of an organism. (Opposed to eumerism, eumeristic, etc.)

Derivatives

dysmeˈristic adj. having the character of such an aggregation.
ΚΠ
1881 E. R. Lankester in Encycl. Brit. XII. 555/1 [article Hydrozoa] According to this second hypothesis..the tendency to bud-formation has all along acted concurrently with a powerful synthetic tendency, so that new units have from the first made but a gradual and disguised appearance. This is ‘dysmerogenesis’, and such aggregates as exhibit it may be called dysmeristic.
dysmerogenesis n. /ˌdɪsmərəʊˈdʒɛnɪsɪs/ [ < Greek μέρος part, γένεσις production] the formation of an organism by successive production of parts which are unlike or irregularly arranged.
ΚΠ
1881 [see dysmeristic adj.].
1881 E. R. Lankester in Encycl. Brit. XII. 555/2 Ordinary cell-division is an example of eumerogenesis; free-formation of nuclei, as in the fertilized ovum of Arthropoda, is dysmerogenesis. A synyctium is usually a synthesized eumeromorph, but may be a dysmeromorph.
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ˌdysmerogeˈnetic adj. marked by or resulting from dysmerogenesis.
ˈdysmeroˌmorph n. /ˈdɪsmərəʊˌmɔːf/ [-morph comb. form] an organic form or organism resulting from dysmerogenesis.
ΚΠ
1881 [see dysmerogenesis n.].
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ˌdysmeroˈmorphic adj. having the character of a dysmeromorph.
This entry has not yet been fully updated (first published 1897; most recently modified version published online December 2018).
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n.1881
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