| 单词 | triad-deme |
| 释义 | > as lemmastriad-deme f. Biology (a) A group of three cells, e.g. spores. (b) A tertiary unit of organization consisting of an aggregate of dyads: cf. dyad n. 2b. Also attributive, as triad-deme: see deme n.2 2. ΘΚΠ the world > life > biology > substance > cell > [noun] > mass or group of polyblast1873 tetrad1876 triad1876 tetrad-deme1883 stem-line1892 paraganglion1907 polyclone1975 the world > life > biology > balance of nature > organisms in interrelationship > [noun] > aggregate or colony colony1808 triad1876 pseudoplasmodium1892 1876 tr. P. Schützenberger On Fermentation 52 The two spores connected together have only one plane surface, the triads have two. 1883 P. Geddes in Encycl. Brit. XVI. 843/2 Starting from the unit of the first order, the plastid or monad, and terming any undifferentiated aggregate a deme, we have a monad-deme integrating into a secondary unit or dyad, this rising through dyad-demes into a triad, these forming triad-demes, etc. < as lemmas |
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