Chalazion

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Chalazion \Cha*la"zi*on\, n. [NL., fr. Gr. ? dim. of ? hail,
     pimple.] (Med.)
     A small circumscribed tumor of the eyelid caused by retention
     of secretion, and by inflammation of the Melbomian glands.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  chalazion
       n : a small sebaceous cyst of the eyelid resulting when a
           Meibomian gland is blocked [syn: {Meibomian cyst}]