| 单词 | cow killer | 
| 释义 | cow killer in American English  US   a large velvet ant (Dasymutilla occidentalis) of the S and E U.S.: the wingless female has a powerful sting cow killer in American Englishnoun the wingless female of any of several velvet ants, esp Dasymutilla occidentalis, of the southern U.S., which inflicts a painful sting  Word origin  [1885–90, Amer.]This word is first recorded in the period 1885–90. Other words that entered Englishat around the same time include: lineup, reactor, scrum, sensitization, toner | 
	
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