Definition of legend for English Language Learners. : 1  a story from the past that is believed by many people but cannot be proved to be true. : 2  a famous or important person who is known for doing something extremely well. : 3  a list that explains the symbols on a map.
glaÂ·cis. n. pl. glacis. 1. a. A gentle slope; an incline. b. A slope extending down from a fortification.
abscissa. n, pl-scissas or-scissae (-ËsÉªsiË). 1. (Mathematics) the horizontal or x-coordinate of a point in a two-dimensional system of Cartesian coordinates. It is the distance from the y-axis measured parallel to the x-axis. Compare ordinate. [C17: New Latin, originally linea abscissa a cut-off line].