| 单词 | pure-rod |
| 释义 | > as lemmaspure-rod pure-rod adj. Zoology (of an animal, or its eye or retina) having only rods as photoreceptors. ΘΚΠ the world > animals > animal body > general parts > head and neck > [adjective] > having an eye or eyes > having rods as photoreceptors pure-rod1932 1932 G. L. Walls in Bull. Antivenin Inst. Amer. 5 69/1 The pure-rod eye sometimes has a pupil which is capable of absolute closure, as in many geckoes. 1962 Science Survey 3 242 In ‘pure-rod’ eyes the retinal structure is always the limiting factor for visual acuity and in these eyes it is always poor. 1992 Proc. National Acad. Sci. U.S.A. 89 6841 In spite of the pure-rod morphology of the photoreceptor cells, the biochemical properties of P521 and P467 resemble those of iodopsin (the chicken red-sensitive cone visual pigment) and rhodopsin. < as lemmas |
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