The Collaborative International Dictionary
Lithographically
lithographic \lith`o*graph"ic\, lithographical \lith`o*graph"ic*al\, a. [Cf. F. lithographique.] Of or pertaining to lithography; made by lithography; as, the lithographic art; a lithographic picture.
Lithographic limestone (Min.), a compact, fine-grained limestone, obtained largely from the Lias and O["o]lite, esp. of Bavaria, and extensively used in lithography. -- Lith`o*graph"ic*al*ly, adv.
Wiktionary
lithographically
adv. In the manner of lithography.