Definition of star hyacinth in US English:

star hyacinth

noun

  • 1Any of several bulbous perennial plants of the genus Scilla (family Asparagaceae) which bloom in early spring and are cultivated for their blue stellate flowers, especially S. amoena.

  • 2An autumnal flowering plant Prospero autumnale (family Asparagaceae) native to the Mediterranean and Great Britain, having blue or purple stellate flowers.

Origin

Late 17th century; earliest use found in John Ray (1627–1705), naturalist and theologian.