Dictionary > Protuberance

Protuberance

protuberance
That which is protuberant swelled or pushed beyond the surrounding or adjacent surface; a swelling or tumour on the body; a prominence; a bunch or knob; an elevation.
(Science: astronomy) solar protuberances, certain rose-coloured masses on the limb of the sun which are seen to extend beyond the edge of the moon at the time of a solar eclipse. They may be discovered with the spectroscope on any clear day. Called also solar prominences.
Synonym: projection, Protuberance.
Protuberance differs from projection, being applied to parts that rise from the surface with a gradual ascent or small angle, whereas a projection may be at a right angle with the surface.
Origin: Cf. F. Protuberance. See Protuberant.

Last updated on July 23rd, 2021

You will also like...

Lentic community
Freshwater Communities & Lentic Waters

Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

Transpiration
Water in Plants

The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

Digestion and Absorption of Food
Digestion and Absorption of Food

The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

human brain structure
The Conscious & Unconscious Nervous System

This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

Cell Respiration
Cell Respiration

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

DNA carries genes coding for proteins
Genetic Information and Protein Synthesis

Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..