See Also: croak 2, noun(dictionary)
croak(dictionary)
croak 1, verb(dictionary)
jig 1, noun(dictionary)
jab 2, noun(dictionary)
tot 1, noun(dictionary)
sit-down 2, noun(dictionary)
pan 1, noun(dictionary)
top 1, noun(dictionary)
bop 2, noun(dictionary)

antigen (iou) and croak 2, noun (oh)


antigen (iou)



antigen noun. E20.
[German from French antigene, formed as ANTI-, -GEN.]
Physiology. A foreign substance which, when introduced into the body, stimulates the production of an antibody.
anti'genic adjective of the Nature of or pertaining to an antigen E20.
anti'genically adverb M20.
antige'nicity noun M20.

croak 2, noun (oh)



2 n [C]
the sound that a frog makes
a low rough sound made in a person's or animal's throat
::The words came out as a dry croak.
-- croaky adj