allosuck

From allo- (“other, different”) +‎ suck.

allosuck (third-person singular simple present allosucks, present participle allosucking, simple past and past participle allosucked)

1. (biology, of an infant, rare) To suckle from a female who is not one's own mother.
   • 2001 June, L Bartoš, “Adoption, allonursing and allosucking in farmed red deer (Cervus elaphus)”, in Animal Science, volume 72, number 3, page 483:

     For each calf recorded to allosuck from a non-maternal hind, total number of allosucked hindswithin the periods of age 0 to 15, 16 to 30, 31 to 45and 45 plus days was calculated.

• allosuckling

• allonurse