ETYM Latin hyacinthus a kind of flower, prob. the iris, gladiolus, or larkspur, also a kind of gem, perh. the sapphire; as, a proper name, Hyacinthus: cf. French hyacinthe. Related to Jacinth.
A red transparent variety of zircon used as a gemstone; SYN. jacinth.
Any bulb-producing plant of the genus Hyacinthus of the lily family Liliaceae, native to the E Mediterranean and Africa. The cultivated hyacinth H. orientalis has large, scented, cylindrical heads of pink, white, or blue flowers. The water hyacinth, genus Eichhornia, is unrelated, a floating plant from South America.
Any of numerous bulbous perennial herbs.