What does aphronitrum mean in Latin?

aphronitrum, a noun, means “The efflorescence of saltpetre”.

What is the genitive of aphronitrum?

The genitive singular is aphronitrī. aphronitrum is neuter, second declension.

In classical Latin, [aˈpʰrɔ.nɪ.trũː]; in ecclesiastical (church) Latin, [aˈfrɔː.ni.trum].

noun · neutersecond declension

aphronitrum n (genitive aphronitrī)

Classical[aˈpʰrɔ.nɪ.trũː]Ecclesiastical[aˈfrɔː.ni.trum]

ā^phrŏnī^trum, i, n., = ἀφρόνιτρον,

I. the efflorescence of saltpetre, Plin. 31, 10, 46, § 3; Mart. 14, 58.

From Ancient Greek ἀφρόνιτρον (aphrónitron), from ἀφρός (aphrós, “foam”) and νίτρον (nítron, “sodium carbonate”).