Glaucus

Origin

From Ancient Greek γλαυκός ("blue-green, blue-grey").

Full definition of glaucus

Noun

1. A genus of nudibranchiate mollusks, found in the warmer latitudes, swimming in the open sea. These mollusks are beautifully colored with blue and silvery white.
2. , the desert lime, a thorny shrub species endemic to semi-arid regions of Australia.
• 1833, Charles Sturt, Two Expeditions into the Interior of Southern Australia, Complete Chapter , This pass is extremely abrupt, and is covered with glaucus, the low scrub I have noticed as common to the sand-stone formation.