plural of physical geographer

The science of radiation protection and safety.

(uncountable, physics) The physics of the four dimensional continuum and the theory of relativity.

(physics, profession) A scientist who studies theoretical physics; using math and other abstract analysis rather than practical experimentation.

person specializing in condensed matter physics

Any of several algal-derived colloids, including alginates, carrageenans, and agars.

plural of phycocolloid

plural of physician assistant

A role (or the person who performs it) that extends a physician's oversight to a larger patient population than would otherwise be reasonable (by relieving the physician of much of the work done for, and time spent with, each patient); physician assistants and nurse practitioners can both provide this extension.

(capitalized when used as a person's title) A health care professional trained and licensed to perform a role similar to that of a physician but with somewhat narrower limits of authority; physician assistants and nurse practitioners have enough capabilities to be physician extenders, providing primary care and allowing physicians to spread their time across more patients.