(Entry 1 of 2) : relating to a caustic curve or caustic surface formed by refraction — compare catacaustic.

What does Catacaustic mean?

: relating to a caustic curve or caustic surface formed by reflection — compare diacaustic.

What does Hyperactivated mean?

Hyperactivation is a type of sperm motility. Hyperactivated sperm motility is characterised by a high amplitude, asymmetrical beating pattern of the sperm tail (flagellum). ... Hyperactivation is a term also used to express an X chromosome gene dosage compensation mechanism and is seen in Drosophila.