diestrum

Từ điển WordNet v3.1 - WordNet Dictionary

noun

(of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activity
• Syn:
diestrus
• Derivationally related forms:
diestrual, diestrual (for: diestrus)
• Hypernyms:
anestrus, anestrum, anoestrus, anoestrum