mordant / mordent [ˈmɔrdənt]
mordant – adj., n. & v. – adj. – 1. of people - having or showing a sharply critical quality; 2. biting, caustic; 3. of substances - corrosive; n. – 1. an ornamental hooked fastening; 2. dyeing – a substance which combines with a dye allowing it to become firmly fixed in the fibre; v. – impregnate with an insoluble substance
mordent – n. – Music a musical ornament usually consisting of the rapid alternation of a given note with the one immediately below or above it in the scale – the main note and the note below are sung quickly in succession before returning to the main note