lucida


lu·ci·da

L5297630 (lo͞o′sĭ-də) n. pl. lucidas The brightest star in a constellation: Rigel is the lucida of the constellation Orion.
[New Latin (stēlla) lūcida : stēlla, star + lūcida, feminine of lūcidus, bright, clear, shining; see lucid.]