| 单词 | litter-mate |
| 释义 | > as lemmaslitter-mate litter-mate n. ΚΠ 1921 Genetics 6 122 These are assumed to be litter-mates for whom all or nearly all tangible environmental factors may be assumed to be in common. 1946 Nature 24 Aug. 258/2 A biological test of a solution in arachis oil of the vitamin A thus obtained showed growth-promoting activity in rats (ten litter-mate growth comparisons) of the order indicated by spectroscopic assay. 1972 Sci. Amer. Feb. 22/3 Rodents are small, inexpensive and bear large litters, so that littermates with the same genetic background can be assigned to different conditions. < as lemmas |
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