单词 | primine |
释义 | priminen. Botany. Now disused. 1. The outer of the two integuments of an ovule, where two are present.Apparently avoided by recent writers, perhaps because of the confusion surrounding its use (cf. sense 2). ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > ovule > outer or third integument primine1832 tercine1832 1832 Encycl. Brit. V. 52 The extensible side of the secundine, and even of the tercine or nucleus, soon ceases to increase with the corresponding side of the primine. 1845 A. Gray Bot. Text-bk. (ed. 2) i. ix. 241 The orifice of the primine is called the Exostome, that of the secundine of the inner Endostome; literally the outer and the inner orifice. 1880 C. E. Bessey Bot. 419 From their position when fully formed, these coats have received the names primine and secundine. 1928 E. Hawks Pioneers Plant Study 13 Each ovule originates as a minute cellular out-growth on the carpel... From the base of this rudimentary ovule, or nucellus, one or two coats, known as secundine and primine grow up. 2. The inner and first formed of the two integuments of an ovule, where two are present.See the note at sense 1. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > ovule > inner or second integument secundine1672 sarcoderm1848 primine1875 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 501 When there are two or three integuments, the innermost (the Primine of Mirbil [sic]) is always formed first, then the outer one (the Secundine), and finally..the Aril [Ger. Sind zwei oder drei Integumente vorhanden, so entsteht immer das innerste zuerst, dann das äussere, und endlich..der Arillus]. 1885 G. L. Goodale in A. Gray & G. L. Goodale Bot. Text-bk. (ed. 6) II. i. iv. 178 The integuments of the seed answer morphologically to the primine and secundine of the ovule. 1904 Bull. Torrey Bot. Club 31 432 The primine... The inner layer is marked almost from the first by its richer contents of protoplasm and active nuclei. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1832 |
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