berylline

As a noun beryllide

is (chemistry) any intermetallic compound of beryllium with another metal; present in some alloys.

As an adjective berylline is

having a light blue-green colour.

As a noun beryllite

is (mineral) an orthorhombic white mineral containing beryllium, hydrogen, oxygen, and silicon.

As an adjective berylline is

having a light blue-green colour.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective berylline is

having a light blue-green colour.