(organic chemistry) The compound (3,4-dihydroxyphenyl)prop-2-enoyloxybutanedioic acid found in some beans

(architecture) An architectural design element involving water, such as a fountain, a pond or a waterfall.

(British) A grade of pencil with lead that makes lighter marks than a pencil grade 2H but darker marks than a pencil of grade 4H; a pencil with hard lead. / A pencil of grade 3H.

plural of himantolophid