Rarity
Pronunciation : Rar"i*ty
Part of Speech : n.;
Etymology : [L. raritas: cf. F. raret?. See Rare.]
Definition : 1. The quality or state of being rare; rareness; thinness; as, the rarity (contrasted with the density) of gases.
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.
pl. Rarities.
Source : Webster's Unabridged Dictionary, 1913