As an adjective colourless
is having little or no colour.
As a noun inyoite is
(mineralogy) a colourless monoclinic mineral with the chemical formula ca(h4b3o7)(oh)·4h2o.
colourless
Alternative forms
* colorless (American spelling)
Adjective
(
en adjective)
Having little or no colour.
(of a liquid) Water white.
Lacking in interest or variety.
inyoite
English
Noun
(
en noun)
(mineralogy) A colourless monoclinic mineral with the chemical formula Ca(H4B3O7)(OH)·4H2O.