DictionarystyEyelid swelling
noun

sty

An inflamed swelling at the edge of an eyelid.

A small sty formed along her eyelid.

Etymology

Old English stīgend named the eyelid swelling. The modern word preserves that medical sense and is distinct from sty, a pig enclosure.

More examples

  • The photograph showed a swollen sty near the lashes.
  • He noticed a tender spot where the sty was developing.
  • The clinician examined the sty on the upper lid.

Forms

sty · sties

Similar words

chalazion
A chalazion is a blocked eyelid gland’s swelling; a sty usually involves an inflamed gland near the lid edge.
swelling
Swelling is a general enlargement; sty identifies a particular inflamed bump at the eyelid.