Search Result for "estrous": 
Wordnet 3.0

ADJECTIVE (1)

1. (of lower mammals) showing or in a state of estrus; in heat;
- Example: "the estrous state"
- Example: "the estrous cycle"



WordNet (r) 3.0 (2006):

estrous
    adj 1: (of lower mammals) showing or in a state of estrus; in
           heat; "the estrous state"; "the estrous cycle" [ant:
           anestrous]