单词 | pecten |
释义 | Word Frequency pecten(ˈpɛktɪn) nounWord forms: plural -tens or -tines (-tɪˌniːz) 1. a comblike structure in the eye of birds and reptiles, consisting of a network of blood vessels projecting inwards from the retina, which it is thought to supply with oxygen 2. any other comblike part or organ 3. any scallop of the genus Pecten, which swim by expelling water from their shell valves in a series of snapping motions Word origin C18: from Latin: a comb, from pectere, related to Greek pekein to comb |
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