Lance \Lance\, v. t. [imp. & p. p. {Lanced}; p. pr. & vb. n. {Lancing}.] 1. To pierce with a lance, or with any similar weapon. Seized the due victim, and with fury lanced Her back. --Dryden. 2. To open with a lancet; to pierce; as, to lance a vein or an abscess. 3. To throw in the manner of a lance. See {Lanch}.