# Event-horizon

**noun**, Astronomy.

1.

the boundary around a black hole on and within which no matter or radiation can escape.

**noun**

1.

(astronomy) the surface around a black hole enclosing the space from which electromagnetic radiation cannot escape due to gravitational attraction. For a non-rotating black hole, the radius is proportional to the mass of the black hole

event horizon

(ĭ-věnt’)

A spatial boundary around a black hole inside which gravity is strong enough to prevent all matter and radiation from escaping. The inability of even light to escape this region is what gives black holes their name.

Tagged: e

Read Also:

- Evaluation strategy
reduction strategy

- Evaluation
[ih-val-yoo-ey-shuh n] /ɪˌvæl yuˈeɪ ʃən/ noun 1. an act or instance of or appraising. 2. (especially in medicine) a diagnosis or diagnostic study of a physical or mental condition. n. 1755, from French évaluation, from évaluer “to find the value of,” from é- “out” (see ex-) + valuer (see value). programming 1. Converting an expression […]

- Evaluating
[ih-val-yoo-eyt] /ɪˈvæl yuˌeɪt/ verb (used with object), evaluated, evaluating. 1. to determine or set the or amount of; appraise: to evaluate property. 2. to judge or determine the significance, worth, or quality of; assess: to evaluate the results of an experiment. 3. Mathematics. to determine or calculate the numerical value of (a formula, function, relation, […]

- Evaluated
[ih-val-yoo-eyt] /ɪˈvæl yuˌeɪt/ verb (used with object), evaluated, evaluating. 1. to determine or set the or amount of; appraise: to evaluate property. 2. to judge or determine the significance, worth, or quality of; assess: to evaluate the results of an experiment. 3. Mathematics. to determine or calculate the numerical value of (a formula, function, relation, […]