A: The Class IV high powered K-Laser is extremely safe provided it is applied by a K-Laser certified, properly trained professional. However, it is not used over the eyes due to the sensitivity of the retina; therefore, all patients wear protective safety glasses during the treatment.
boa. 1  any of a number of tropical and subtropical, nonvenomous constrictor snakes (family Boidae) that use their powerful coils to squeeze their prey to cause death by suffocation, as the anaconda or boa constrictor. 2  a woman's long scarf, as of fur or feathers, worn around the neck or shoulders.
Freebase(0.00 / 0 votes)Rate this definition: Casta. Casta is a Spanish and Portuguese term used in 17th and 18th centuries mainly in Spanish America to describe as a whole the mixed-race people which appeared in the post-Conquest period.