(nautical) A special kind of harpoon, usually secured just below the gunwale of a whaleboat.

plural of spanning tree

The length of a person's outstretched arms, measured from the fingertips of the two middle fingers. See also fathom

plural of span roof

plural of span block

plural of span shackle

plural of span iron

The number of subordinates directly reporting to a supervisor.

Alternative form of spic and span

(linear algebra) A linear subspace generated by all linear combinations of a given subset of vectors of a given vector space.