Protrude \Pro*trude"\, v. t. [imp. & p. p. {Protruded}; p. pr. & vb. n. {Protruding}.] [L. protrudere, protrusum; pro forward + trudere to thrust. See {Threat}.] [1913 Webster] 1. To thrust forward; to drive or force along. --Locke. [1913 Webster] 2. To thrust out, as through a narrow orifice or from confinement; to cause to come forth. [1913 Webster] When . . . Spring protrudes the bursting gems. --Thomson. [1913 Webster]