versant

A gadget lover, Alexander is known to roll up his sleeves to become versant with the latest security technologies.

From Reuters ● May 26, 2013

On the inland versant a narrow native shaft has been sunk for gold by Mr. Sam, now native agent under Mr. Crocker.

From To The Gold Coast for Gold, Vol. II A Personal Narrative by Sir Richard Francis Burton

For this purpose, they gave orders to Diego Garcias de Alfaro, an inhabitant of Lima who was versant in maritime affairs, to repair and fit out the two barks which had drifted on shore.

From A General History and Collection of Voyages and Travels - Volume 05 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time by Robert Kerr

The fact that the lavas of Vesuvius have broken out on the southwestern side, while the old wall of the cone has remained unbroken on the eastern versant, has a curious explanation.

From Outlines of the Earth's History A Popular Study in Physiography by Nathaniel Southgate Shaler

Remarks.—Previous authors who treated Syrrhophus placed this species in the western complex, because it occurs on the Pacific versant and has a reduced outer palmar tubercle.

From A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope by John D. Lynch