extrusion

definition: squeezing out by applying pressure

example: an unexpected extrusion of toothpaste from the bottom of the tube

speech part: noun

synonyms: expulsion

definition: something that bulges out or is protuberant or projects from its surroundings

example:

speech part: noun

synonyms: protrusion jut prominence excrescence bump swelling bulge hump gibbosity gibbousness protuberance