| 单词 | tapetum |
| 释义 | tapetum —tapetal, adj. /teuh pee"teuhm/, n. , pl. tapeta /-teuh/. 1. Bot. a layer of cells often investing the archespore in a developing sporangium and absorbed as the spores mature. 2. Anat. , Zool. any of certain membranous layers or layered coverings, as in the choroid of the eyes of certain animals. [1705-15; < NL, special use of ML tapetum coverlet (L, only pl.) < Gk tapet- (s. of tápes) carpet, rug] |
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