As an adjective subcolumnar

is having an imperfect or interrupted columnar structure.

As a noun pycnite is

a massive subcolumnar variety of topaz.

As nouns the difference between topaz and pycnite

is that topaz is a clear, yellowish-brown gemstone while pycnite is a massive subcolumnar variety of topaz.

As an adjective topaz

is of a yellowish-brown color, like that of the gemstone.

As a verb purloin

is to take the property of another, often in breach of trust; to appropriate wrongfully; to steal.

As a noun purloiner is

one who purloins.

As a noun pyrochlore

is .

As an adjective pyrochloric is

of or pertaining to pyrochlore.

As nouns the difference between mineral and pyrosmalite

is that mineral is mineral while pyrosmalite is (mineralogy) a mineral, usually of a pale brown or grey-greenish colour, consisting chiefly of the hydrous silicate of iron and manganese.

As an adjective hydrous

is (chemistry) containing combined water; hydrated.

As a noun pyrosmalite is

(mineralogy) a mineral, usually of a pale brown or grey-greenish colour, consisting chiefly of the hydrous silicate of iron and manganese.

As nouns the difference between silicate and pyrosmalite

is that silicate is while pyrosmalite is (mineralogy) a mineral, usually of a pale brown or grey-greenish colour, consisting chiefly of the hydrous silicate of iron and manganese.

As nouns the difference between iron and pyrosmalite

is that iron is pencil while pyrosmalite is (mineralogy) a mineral, usually of a pale brown or grey-greenish colour, consisting chiefly of the hydrous silicate of iron and manganese.

As a noun ketosis

is (pathology) a metabolic state in which the body produces ketones to be used as fuel by some organs so that glycogen can be reserved for organs that depend on it this condition occurs during times of fasting, starvation, or while on a ketogenic weight-loss diet.

As an adjective nonketoic is

unrelated to ketosis or ketoacidosis, not of a ketoic origin.

As a noun ketoacidosis

is a severe form of ketosis, most commonly seen in diabetics, in which so much ketone is produced that acidosis occurs.

As an adjective nonketoic is

unrelated to ketosis or ketoacidosis, not of a ketoic origin.