/al"sid/ , adj.
1. Also, alcidine /al"si duyn'/ . of, pertaining, or belonging to the family Alcidae, comprising the auks, murres, puffins, etc.
n.
2. a bird of the family Alcidae.
[ Alcidae name of the family, equiv. to Alc ( a ) an auk genus ( -idae -ID 2 ]