| 释义 |
lithocyst|ˈlɪθəsɪst|
[f. litho- + cyst.]
1. Zool. One of the sacs containing mineral particles found in certain Medusæ, and supposed to be organs of hearing.
1859Huxley Oceanic Hydrozoa 24 Every appendage (except the hydrothecæ and lithocysts) commences its existence as a cæcal process of the ectoderm and endoderm. 1870Nicholson Man. Zool. 92 The margin of the umbrella is furnished with a series of..‘lithocysts’. 1877Huxley Anat. Inv. Anim. iii. 126 There can be little doubt that the lithocysts..are of the nature of auditory organs.
2. Bot. A cell containing crystals of calcium carbonate formed beneath the surface of the leaves of some plants.
1882Vines Sach's Bot. 88 Transitional forms between the imperfect laticiferous vessels of bulb-scales and simple lithocysts which do not contain latex but only raphides. |