present participle of channel surf

(law) A bond issued by one party, the surety, guaranteeing that he will perform certain acts promised by another or pay a stipulated sum, up to the bond limit, in lieu of performance, should the principle fail to perform.

Alternative spelling of subsurface

(engineering) Unwanted radar or sonar wave reflection arising from the land or sea surface.

(topology) The removal of a solid torus from a 3-dimensional manifold, followed by its being replaced via a homeomorphism of its boundary.

(simile, colloquial) Most certainly.

present participle of body-surf

To ride waves or surf without a surfboard or other equipment.

To ride waves or surf without equipment, such as a surfboard.

present participle of body surf