释义 |
es·trus noun or oes·trus \ˈestrəs, chiefly Brit ˈēs-\; also es·trum or oes·trum \-rəm\ (plural estruses or oestruses also estrums or oestrums) Usage: often attributive Etymology: New Latin, from Latin oestrus gadfly, frenzy, from Greek oistros — more at ire 1. a. : a regularly recurrent state of sexual excitability during which the female of most mammals will accept the male and is capable of conceiving : heat b. : a single occurrence of this state < the next estrus was delayed > 2. : estrous cycle |