<p><strong>Noun</strong></p><ul><li>Also called deadly nightshade.</li><li>a poisonous plant, <em>Atropa belladonna</em>, of the nightshade family, having purplish-red flowers and black berries.</li><li>Pharmacology: a drug from the leaves and root of this plant, containing atropine and related alkaloids: used in medicine to check secretions and spasms, to relieve pain or dizziness, and as a cardiac and respiratory stimulant.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to time, test, or determine by means of a clock or watch: The racehorse was clocked at two minutes thirty seconds.</li><li>Slang: to strike sharply or heavily: Somebody clocked him on the face.</li><li>Slang: to identify (someone) as transgender or as the gender they were assigned at birth, especially when they do not wish to be so identified: She clocked me on our first date, but told me she was transgender too.</li><li>verb phrase: to end work, especially by punching a time clock: He clocked out early yesterday.</li><li>to begin work, especially by punching a time clock: She clocked in at 9 a.m. on the dot.</li></ul>