oikocryst

Oikocryst is likely misspelled.

Oikocryst has no English definition.

As a noun taxonomy

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

Oikocryst is a related term of macrocryst.

As a noun macrocryst is

(mineralogy) a relatively large crystal occurring in a mineral deposit, usually defined as one between 05 mm and 10 mm in size.