grape hyacinth noun1 •Any of the species of three genera in the Hyacinthinae subtribe (family Asparagaceae) that produce racemes of small blue flowers, Muscari, Pseudomuscari, and Leopoldia.[…]while the wood hyacinth, or grape hyacinth, at its best, cannot match even the dark bell-gentian, […] — 1856 formsgrape hyacinths
