- light bluish-green or greenish-blue.
- Botany. covered with a whitish bloom, as a plum.
- botany covered with a bluish waxy or powdery bloom
“bluish-green, gray,” 1670s, from Latin glaucus “bluish-green,” of uncertain origin; used in Homer of the sea as “gleaming, silvery” (apparently without a color connotation); used by later writers with a sense of “bluish-green, gray,” of olive leaves and eyes. Homer’s glauk-opis Athene probably originally was a “bright-eyed,” not a “gray-eyed” goddess. Greek for “owl” was glaux from its bright, staring eyes.