rare

Definition

Very uncommon; scarce.

Etymology

From Middle English rare, from Old French rare, rere (“rare, uncommon”), from Latin rārus (“loose, spaced apart, thin, infrequent”), from Proto-Indo-European *h₁reh₁- (“friable, thin”). Displaced native English geason (“rare, scarce”) (from Middle English gesen, from Old English gǣsne); and replaced Middle English seld (“rare, uncommon”) (from Old English selden) and Middle English seldscene (“rare, rarely seen, infrequent”) (from Old English seldsēne).

Example Sentences

• "Black pearls are very rare and therefore very valuable."
• "Plant breeding is always a numbers game.[…]The wild species we use are rich in genetic variation, and individual plants are highly heterozygous and do not breed true. In addition, we are looking for rare alleles, so the more plants we try, the better."
• "While many material components in Andromeda are familiar, we have also discovered rarer and more valuable materials; attributable to exposure to the Scourge, or mysterious alien technology."

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