a white gull, Pagophila (or Larus) eburneus, mostly confined to arctic regions
ivory gull in American English
noun
a white, arctic gull, Pagophila eburnea
Word origin
[1915–20]This word is first recorded in the period 1915–20. Other words that entered Englishat around the same time include: camouflage, conditioning, decoder, feedback, stockpile