Third-person singular simple present indicative form of counterdistinguish

(colloquial, rhetorical question) Synonym of is the Pope Catholic

That which dilutes. / (analytical chemistry) A solvent or other liquid preparation used to dilute a sample prior to testing. / (medicine) An agent used for effecting dilution of the blood; a weak d...

(historical) Abbreviation of French pour prendre congé (“to take leave”) or English presents parting compliments; a decorous visitor would write P.P.C. on a card (referred to as a P.P.C. card) as a...