Alternative spelling of editor in chief

(music) A smaller note marking a tone introduced between two others, to effect a smooth passage from the one to the other, but forming no essential part of the harmony.

A very small area that has different characteristics than its surroundings. / (biology) The very small environment in the immediate vicinity of an organism.

(geometry) The angle formed by two rays of light, or two straight lines drawn from the extreme points of an object to the center of the eye.