What does acidophilus mean in Latin?

acidophilus, a adjective, means “acidophilic”.

How do you pronounce acidophilus?

In classical Latin, [a.kɪˈdɔ.pʰɪ.ɫʊs]; in ecclesiastical (church) Latin, [a.t͡ʃiˈdɔː.fi.lus].

adjectivefirst/second-declension adjective

acidophilus (feminine acidophila, neuter acidophilum)

Classical[a.kɪˈdɔ.pʰɪ.ɫʊs]Ecclesiastical[a.t͡ʃiˈdɔː.fi.lus]

singular
form	masculine	feminine	neuter
nominative	acidophilus	acidophila	acidophilum
genitive	acidophilī	acidophilae	acidophilī
dative	acidophilō	acidophilae	acidophilō
accusative	acidophilum	acidophilam	acidophilum
ablative	acidophilō	acidophilā	acidophilō
vocative	acidophile	acidophila	acidophilum

plural
form	masculine	feminine	neuter
nominative	acidophilī	acidophilae	acidophila
genitive	acidophilōrum	acidophilārum	acidophilōrum
dative	acidophilīs	acidophilīs	acidophilīs
accusative	acidophilōs	acidophilās	acidophila
ablative	acidophilīs	acidophilīs	acidophilīs
vocative	acidophilī	acidophilae	acidophila

From acidus (“sour, acid”) + philus (“beloved”), from Ancient Greek φίλος (phílos, “friend”).