phlyctenule
noun
phlyc·te·nule
| \ flik-ˈten-(ˌ)yü(ə)l
, ˈflik-tə-ˌn(y)ü(ə)l
\
, ˈflik-tə-ˌn(y)ü(ə)l
\
Medical Definition of phlyctenule
: a small vesicle or pustule
especially
: one on the conjunctiva or cornea of the eye