A citrus tree (Citrus reshni) with fruit resembling the lemon. / The acidic, sour fruit of this tree. It is too sour to be edible, but it is used in agriculture.

(computing, telecommunications) The frequency at which bits (binary digits) pass a given physical or metaphorical point, measured in bps (bits per second).

plural of Pisidian

(rare) contrast; the contrasting of opposing things or elements