UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈbiːstɪŋz/US:USA pronunciation: respellingUSA pronunciation: respelling(bēstingz)

WordReference Random House Unabridged Dictionary of American English © 2020
beest•ings  (bēstingz),USA pronunciation n. (used with a sing. v.)
  1. Zoologythe first milk or colostrum of a mammal, esp. a cow, after giving birth.
Also,  beastings, biestings. 
  • late Middle English bestynge, Old English bȳsting, equivalent. to bēost beestings (cognate with Old Saxon, Old High German biost, German Biest) + -ing -ing1 bef. 1000

Collins Concise English Dictionary © HarperCollins Publishers::
beestings, biestings, US beastings /ˈbiːstɪŋz/ n
  1. (functioning as singular) the first milk secreted by the mammary glands of a cow or similar animal immediately after giving birth; colostrum
Etymology: Old English bӯsting, from bēost beestings; related to Middle Dutch biest
'beestings' also found in these entries (note: many are not synonyms or translations):
Report an inappropriate ad.