adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Of or pertaining to a mammal, such as the dog, that only enters into heat once during each of its normal breeding cycles. not-comparable

   "The dog, wolf, and fox are monestrous, the fox and wolf having one and the dog two cycles in a year."

Adjective

1. 1
   having one estrous cycle per year wordnet

Synonyms

All synonyms

monoestrousmonoestrous

Antonyms

All antonyms

polyestrous

Example

More examples

"The dog, wolf, and fox are monestrous, the fox and wolf having one and the dog two cycles in a year."

Etymology

From mon- + estrous.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.