(n) :
Any of a group of minute unicellular algae having a siliceous covering of great delicacy, now categorized as class Diatomophyceae or division Bacillariophyta.
(n) :
(chemistry) A molecule composed of two atoms of the same element; a homonuclear diatomic molecule.
(n) :
Any of a group of minute unicellular algae having a siliceous covering of great delicacy, now categorized as class Diatomophyceae or division Bacillariophyta.
(n) :
(chemistry) A molecule composed of two atoms of the same element; a homonuclear diatomic molecule.