-ēlə(r) noun
( -s )
: one that squeals: as
a. : a European swift ( Apus apus syn. Micropus apus )
b. : harlequin duck
c. : an American golden plover ( Pluvialis dominica )
d. : a young squab pigeon
e. dialect : wood duck 1
f. : a young grouse, partridge, or quail
g. : informer , betrayer