(astronomy) A function that describes the angular distribution of light reflected from a body when illuminated from a specific direction

A form of light microscopy in which small differences in refractive index of a transparent specimen are converted into amplitude (contrast) differences in the final image.

A feigned punch with the fist.

The latter part of the menstrual cycle, that occurs after ovulation, in which the corpus luteum secretes progesterone to prepare the endometrium for the implantation of an embryo.

(transitive) To introduce (something) little by little, either via discrete phases of increase or (by extension) by continuous gradations; to introduce in phases, or as if by phases (gradually); to begin (something) gradually.

(transitive) To remove or relinquish the use of (something) little by little, either via discrete diminishing phases or (by extension) by continuous gradations; to remove in phases, or as if by phases (gradually).

(mathematics, physics, dynamical system theory) Given a (dynamical) system, any topological space such that every point in the space's underlying set uniquely represents a state of the system and every possible state is represented by some point;

Of or pertaining to the Pharisees. / (chiefly Christianity) Emphasizing the observance of ritual or practice over the meaning; self-righteous, hypocritical.

The art and science of dispensing medical drugs. / (plurale tantum) medicines, drugs, or other pharmaceutical compounds.

Of or pertaining to ghosts or phantoms. / Eerie or frightening. / Expresses qualities of or produced from fantasy.