As nouns,
venae profundae clitoridis is a hyponym of
clitoral vein; that is, venae profundae clitoridis is a
word with a more specific, narrower meaning than
clitoral vein:
clitoral vein: veins that serve the clitoris
venae profundae clitoridis: deep veins of the clitoris; join the vesical plexus