Prominence

n. eminence, importance; fame, notoriety; conspicuousness state of being noticeable; protrusion, projection

In topography, prominence, also known as autonomous height, relative height or shoulder drop (in America) or prime factor (in Europe), is a concept used in the categorization of hills and mountains, also known as peaks. It is a measure of the independent stature of a summit.
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Noun
1. the state of being prominent: widely known or eminent
(antonym) obscurity
(hypernym) standing
(hyponym) limelight, spotlight, glare, public eye
2. relative importance
(hypernym) importance
3. something that bulges out or is protuberant or projects from a form
(synonym) bulge, bump, hump, gibbosity, gibbousness, jut, protuberance, protrusion, extrusion, excrescence
(hypernym) projection
(hyponym) frontal eminence

(n.)
Alt. of Prominency
  

A cloud or plume of hot, luminous gas which is elevated into the lower solar corona from the top of the chromosphere . This usually occurs over regions of solar activity such as sunspot groups. Prominences are supported by magnetic fields. There are several kinds of prominences. In a surge prominence, gas moves up and down along the same path. In a loop prominence the gas is suspended in a loop. Arch prominences resemble hedgerows of glowing gas. Some prominences exist only briefly, others are quiescent and exist for months, almost unchangingly. They are best observed at the limb of the Sun. When they are in silhouette against the disc they are known as filaments.