- 1a bulbous plant of the lily family, with straplike leaves and a compact spike of bell-shaped fragrant flowers. Native to western Asia, hyacinths are cultivated outdoors and as houseplants.
- Genus Hyacinthus, family Liliaceae: several species, in particular H. orientalis, from which the common large-flowered cultivars are derived
- 2another term for jacinth.
mid 16th century (denoting a gem): from French hyacinthe, via Latin from Greek huakinthos, denoting any of various plants identified with the flower in the myth of Hyacinthus, and a gem (perhaps the sapphire). The current sense dates from the late 16th century