I. ˈrer adjective
( rar·er ; rar·est )
Etymology: Middle English, from Latin rarus
Date: 14th century
1. : marked by wide separation of component particles : thin
rare air
2.
a. : marked by unusual quality, merit, or appeal : distinctive
b. : superlative or extreme of its kind
3. : seldom occurring or found : uncommon
Synonyms: see choice , infrequent
• rare·ness noun
II. adjective
( rar·er ; rar·est )
Etymology: alteration of earlier rere, from Middle English, from Old English hrēre boiled lightly; akin to Old English hrēran to stir, Old High German hruoren
Date: 1784
: cooked so that the inside is still red
rare roast beef