Alternative spelling of subsurface

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

Any n-dimensional surface (or line) having a constant scalar potential

(mathematics) Any surface that has the least possible surface area of those into which it could transform; typically the shapes of soap bubbles that span wire frames

plural of Fermi surface

plural of Seifert surface

An orientable surface whose boundary is a given link.

Either of a pair of surfaces that are in contact in a joint.

plural of faying surface

(engineering) A surface on a workpiece that establishes a datum.