单词 | lycopodium |
释义 | lycopodiumn. 1. Botany. A plant of the cryptogamous genus Lycopodium: a club-moss. In early use, L. clavatum. ΘΚΠ the world > plants > particular plants > moss > [noun] > club-moss or moss-like ferns dwarf cypress1548 heath-cypress1551 pine1551 wolf's-claw1578 club-moss1597 wolf-claw1597 wolf's-foot1597 tree-moss1611 Selagoa1627 cypress-moss1640 mountain moss1688 lycopodium1706 stag's horn (also staghorn) moss1741 walking fern1814 tod-tails1820 Robin Hood's hatband1828 resurrection plant1841 ground-pine1847 forks and knives1853 fir club-moss1855 lycopod1861 Selaginella1865 foxtail1866 stag-head or stag's head moss1869 fir-moss1879 hog-bed1900 1706 Phillips's New World of Words (new ed.) Lycopodium, Wolfs-claw, an Herb. 1756 C. Lucas Ess. Waters ii. 136 All around, the lycopodium, or club-moss, is found in great plenty. 1851 G. F. Richardson Geol. (1855) vii. 174 The gigantic lycopodium-like, and cactoid plants of the coal measures..all disappear. 1873 Dyer in Q. Jrnl. Microsc. Sci. XIII. 155 The thickened prosenchymatous cells which are found in recent Lycopodiums. 2. The fine powder formed by the ripe spores of species of Lycopodium, known as ‘vegetable brimstone’ from its inflammability. Also lycopodium dust, lycopodium powder.It is used in surgery as an absorbent; also in theatres for the production of stage lightning. ΘΚΠ society > occupation and work > materials > raw material > other vegetable materials > [noun] > lycopodium witch meal1792 lycopodium1836 vegetable brimstone1838 lycopode1866 vegetable sulphur1887 1836 J. M. Gully tr. F. Magendie Formulary (ed. 2) 173 Starch or lycopodium powder washed with alcohol, appears to preserve the auriferous salts the best. 1856 R. B. Todd & W. Bowman Physiol. Anat. II. 89 The vibrations of the paper are easily demonstrated by the movements of particles of fine sand, or lycopodium powder strewed upon it. 1877 L. A. Duhring Pract. Treat. Dis. Skin 235 Asborbent dusting powders, consisting of lycopodium dust..will be found most useful. 1966 F. H. Brightman Oxf. Bk. Flowerless Plants 56/2 The spores form a very fine, bright-yellow powder called ‘lycopodium powder’, which was formerly used as a constituent of ‘flash powder’. 1999 New Sci. 31 July 109/3 Remember that lycopodium powder can be dangerous because it is so fine that it can explode easily. This entry has not yet been fully updated (first published 1903; most recently modified version published online March 2022). < n.1706 |
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