When you hear 'anestrus' are you hearing English or Latin?

'Anestrus' is a word borrowed from Latin 'anestrus'. The word entered the English language some time around 1927.

anestrus [noun] [1927]

The period of sexual quiescence between two periods of sexual activity in cyclically breeding mammals

See 'anestrus' on the Loan Words Map

See more loan words from Latin.

Etymology: New Latin

See more loan words from 1920s.