What does spīnipennis mean in Latin?

spīnipennis, a adjective, means “spiny-feathered”.

How do you pronounce spīnipennis?

In classical Latin, [spiː.nɪˈpɛn.nɪs]; in ecclesiastical (church) Latin, [spi.niˈpɛn.nis].

adjectivethird-declension two-termination adjective

spīnipennis (neuter spīnipenne)

Classical[spiː.nɪˈpɛn.nɪs]Ecclesiastical[spi.niˈpɛn.nis]

singular
form	masculine	feminine	neuter
nominative	spīnipennis	spīnipennis	spīnipenne
genitive	spīnipennis	spīnipennis	spīnipennis
dative	spīnipennī	spīnipennī	spīnipennī
accusative	spīnipennem	spīnipennem	spīnipenne
ablative	spīnipennī	spīnipennī	spīnipennī
vocative	spīnipennis	spīnipennis	spīnipenne

plural
form	masculine	feminine	neuter
nominative	spīnipennēs	spīnipennēs	spīnipennia
genitive	spīnipennium	spīnipennium	spīnipennium
dative	spīnipennibus	spīnipennibus	spīnipennibus
accusative	spīnipennīs spīnipennēs	spīnipennīs spīnipennēs	spīnipennia
ablative	spīnipennibus	spīnipennibus	spīnipennibus
vocative	spīnipennēs	spīnipennēs	spīnipennia

From spīnus (“spine; thorn”) + penna (“feather; wing”) + -is.