| 单词 | crystalline cone | 
| 释义 | > as lemmascrystalline cone   crystalline cone  n. Zoology (in the compound eyes of many insects, crustacea, and other arthropods) a hard, refractive, conical body below the cornea of each ommatidium. ΚΠ 1830    Jrnl. Royal Inst. Great Brit. 1 153  				In many Crustacea, the existence of crystalline cones or prisms between the facets of the cornea and the fibrils of the optic nerve has long been known. 1885    Q. Jrnl. Microsc. Sci. 25 229  				The term ‘pseudocone’ was given by Grenacher to the structure corresponding to the crystalline cones of the majority of insects. 1947    A. D. Imms Outl. Entomol. 		(ed. 3)	 ii. 38  				Four transparent cone cells..either contain fluid or secrete a body known as the crystalline cone. 2006    Science 28 Apr. 557/1  				Each ommatidium consists of a light-diffracting facet lens, a crystalline cone, and photoreceptor cells with a wave-guiding rhabdom. < as lemmas | 
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