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Protruding means something Sticking out.
protruding edges are labra
The dog's swollen tongue was protruding from its mouth.
Protruding from the mailbox, the newspaper got soaked from the rain.
The bump appeared to be protruding from his elbow.
Her teeth were protruding because she didn't have her braces.
Protruding means to stick out from something else in an obvious way. Such as someone with a large nose would have a protruding nose.