What does quadrangulus mean in Latin?

quadrangulus, a adjective, means “quadrangular (four-sided)”.

How do you pronounce quadrangulus?

In classical Latin, [kʷaˈdraŋ.ɡʊ.ɫʊs]; in ecclesiastical (church) Latin, [kʷaˈdraŋ.ɡu.lus].

adjectivefirst/second-declension adjective

quadrangulus (feminine quadrangula, neuter quadrangulum)

Classical[kʷaˈdraŋ.ɡʊ.ɫʊs]Ecclesiastical[kʷaˈdraŋ.ɡu.lus]

singular
form	masculine	feminine	neuter
nominative	quadrangulus	quadrangula	quadrangulum
genitive	quadrangulī	quadrangulae	quadrangulī
dative	quadrangulō	quadrangulae	quadrangulō
accusative	quadrangulum	quadrangulam	quadrangulum
ablative	quadrangulō	quadrangulā	quadrangulō
vocative	quadrangule	quadrangula	quadrangulum

plural
form	masculine	feminine	neuter
nominative	quadrangulī	quadrangulae	quadrangula
genitive	quadrangulōrum	quadrangulārum	quadrangulōrum
dative	quadrangulīs	quadrangulīs	quadrangulīs
accusative	quadrangulōs	quadrangulās	quadrangula
ablative	quadrangulīs	quadrangulīs	quadrangulīs
vocative	quadrangulī	quadrangulae	quadrangula

quā^drangŭlus, v. quadriangulus.

From quattuor + angulus.