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Glite Dictionary
proestrus

proestrus

9.9
A stage in female mammals before they are fertile when the body prepares to release an egg
  • noun
  • /ˌproʊˈɛstrəs/
  • Specialized
: proestro
  • During proestrus, female dogs may show swelling and a bloody discharge as their bodies prepare for ovulation.

Examples

  • The veterinarian explained that the dog's proestrus phase would last about nine days before she became fertile.

  • Careful observation of proestrus signs helps breeders determine the optimal time for mating.

  • What is proestrus?

  • During proestrus, the female dog's behavior can change significantly.

  • During proestrus, female dogs may show swelling and a bloody discharge as their bodies prepare for ovulation.

  • The veterinarian explained that the dog's proestrus phase would last about nine days before she became fertile.

  • Careful observation of proestrus signs helps breeders determine the optimal time for mating.

Surface Forms

proestrus singular
proestri plural

Morphology

proestrus = estrus (semi-transparent) = pro + estrus

The structure clearly means a stage before estrus, but the specialized scientific use of 'pro-' makes the derivation slightly less obvious than everyday 'pre-' formations.

Etymology

The word proestrus is made of pro- meaning 'before' and estrus meaning 'heat' or 'mating time'. So proestrus is the stage just 'before' an animal's heat, when the body gets ready to release eggs.