Of a mineral: becoming incandescent when heated, especially to relatively low temperatures; of or relating to such behaviour.
Origin
Mid 19th century; earliest use found in Edinburgh New Philosophical Journal. From pyro- + ancient Greek γνώμη means of knowing, mark, token + -ic, after German pyrognomisch.
Definition of pyrognomic in US English:
pyrognomic
adjective
Of a mineral: becoming incandescent when heated, especially to relatively low temperatures; of or relating to such behaviour.
Origin
Mid 19th century; earliest use found in Edinburgh New Philosophical Journal. From pyro- + ancient Greek γνώμη means of knowing, mark, token + -ic, after German pyrognomisch.