| 单词 |
linin |
| 释义 |
linin Chem.|ˈlaɪnɪn|
Also -ine.
[f. L. līnum flax + -in1.]
1. A crystallizable bitter principle obtained from Linum catharticum (Purging Flax).
1852Brande Dict. Sci. etc., Suppl., Linine. 1865Watts Dict. Chem. III. 700 Linin melts and decomposes when heated.
2. Cytology (now chiefly Hist.). [a. G. linin (F. Schwarz 1887, in Beitr. z. Biol. d. Pflanzen V. 9), f. Gr. λίνον (= L. līnum) thread.] A substance which composes the fine threads seen in interphase nuclei; a thread or network composed of this substance (see quot. 1932).
1887Jrnl. R. Microsc. Soc. 979 As components of the nucleus, Schwartz [sic] distinguishes the following substances:—..(3) linin and paralinin, the substance respectively of the nuclear threads, the ‘nucleo-hyaloplasm’ of Strasburger, and of the intermediate matrix or ‘nuclear sap’. 1905Rep. Brit. Assoc. Adv. Sci. 567 The nucleus contains an achromatic network—the linin—in which the chromatin granules are embedded. 1925E. B. Wilson Cell (ed. 3) i. 88 The [nuclear] framework itself appears to consist of two constituents, namely, a continuous ‘achromatic’ basis, and of more or less discontinuous granules or clumps of ‘chromatin’ suspended in it... The first of these was found to be oxyphilic and was accordingly designated by Strasburger as nucleohyaloplasm, by Carnoy as the plasmatic network (composed of ‘plastin’) and later by Schwarz ('87) as linin, a term still in common use. 1932C. D. Darlington Recent Adv. Cytol. 498 Linin, a structural component of the nucleus. The term has been applied to the descriptions of various artefacts and has no definite meaning. 1948W. Andrew tr. E. D. P. de Robertis's Gen. Cytol. vii. 137 A fine lightly staining reticulum, the linin. 1969Brown & Bertke Textbk. Cytol. 574/1 Linin, achromatic material connecting chromioles in the interphase nucleus, in contrast to only one substance, karyotin, composing the reticulum. |
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