What is "sliding friction"

Sliding \Slid"ing\, a.

1. That slides or slips; gliding; moving smoothly.

2. Slippery; elusory. [Obs.] That sliding science hath me made so bare. --Chaucer. Sliding friction (Mech.), the resistance one body meets with in sliding along the surface of another, as distinguished from rolling friction. Sliding gunter (Naut.), a topmast arranged with metallic fittings so as to be hoisted and lowered by means of halyards. Sliding keel (Naut), a movable keel, similar to a centeboard. Sliding pair. (Mech.) See the Note under Pair, n., 7. Sliding rule. Same as Slide rule, under Slide, n. Sliding scale.

   1. A scale for raising or lowering imposts in proportion to the fall or rise of prices.

   2. A variable scale of wages or of prices.

   3. A slide rule.

      Sliding ways (Naut.), the timber guides used in launching a vessel.