extrusion Meaning, Definition & Usage

1. noun something that bulges out or is protuberant or projects from its surroundings
   protrusion; bulge; gibbousness; hump; prominence; bump; swelling; excrescence; jut; gibbosity; protuberance.
   
   • the gun in his pocket made an obvious bulge
   • the hump of a camel
   • he stood on the rocky prominence
   • the occipital protuberance was well developed
   • the bony excrescence between its horns
2. noun squeezing out by applying pressure
   expulsion.
   
   • an unexpected extrusion of toothpaste from the bottom of the tube
   • the expulsion of pus from the pimple

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