beta
 n.— «A flash has come to mean the ascent of a route with no weighting of the rope (falls, hangs, etc.) It also generally connotes no significant pre-inspection, beta, etc. An “a vue” ascent is a flash with *absolutely* no beta or inspection.» —“Re: 5.12 babble” by Ray Snead Usenet: rec.backcountry Feb. 22, 1990. (source: Double-Tongued Dictionary)

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