What's the difference between vellicate and vellication?

Vellicate

Definition:

• (v. t.) To twitch; to cause to twitch convulsively.
• (v. i.) To move spasmodically; to twitch; as, a nerve vellicates.

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Vellication

Definition:

• () The act of twitching, or of causing to twitch.
• () A local twitching, or convulsive motion, of a muscular fiber, especially of the face.

Example Sentences: