01 n. The quality or state of being rare; rareness; thinness; as, the rarity (contrasted with the density) of gases.
pl.
Rarities ((răr"ĭ*tĭz))
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1.
The quality or state of being rare; rareness; thinness; as, the rarity (contrasted with the density) of gases.
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2.
That which is rare; an uncommon thing; a thing valued for its scarcity.“I saw three rarities of different kinds, which pleased me more than any other shows in the place.” — Addison.