Glossary & References / Keywords List / Definitions:

Term to be defined Definition Synonyms & Keywords
Oestrus - "the period when a female animal is sexually receptive to the male, and fertile (when follicles mature in the ovary and ovulation occurs)." (B73, B80, B125)
  • Estrus (American)
  • Oestrous (adjective)
  • Estrus (adjective, American)