chlorpromazine: a drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer
phenothiazine: a compound used primarily in veterinary medicine to rid farm animals of internal parasites
hooded ladies' tresses: orchid having dense clusters of gently spiraling creamy white flowers with 2 upper petals forming a hood; western North America