- (uncommon) Of or pertaining to Cythera, an island now part of Greece, at which the goddess Aphrodite came ashore on a seashell according to Greek mythology. Thus, referring to the goddesses Aphrodite or Venus.
- (uncommon) Of or pertaining to the planet Venus; Venusian.
- (rare) Venereal.
From Cythera, from Ancient Greek Κύθηρα (Kuthēra) + -an.