Dictionary
diph•the•roid
Pronunciation: (dif'thu-roid", dip'-), [key]—
adj. Pathol.
resembling diphtheria, esp. in the formation of a false membrane in the throat.
—
n.
any bacterium, esp. of the genus
Corynebacterium, that resembles the diphtheria bacillus but does not produce diphtheria toxin.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.