A tool consisting of a smooth-soled stock from the face of which extends a wide-edged cutting blade for smoothing and shaping wood.

Screen of magnetic cores; planes are combined to form stacks.

1. A surface such that a straight line that joins any two of its points lies entirely in that surface.

2. In projective geometry, a triple of sets (P,L,I ) where P denotes the set of points, L the set of lines, and I the incidence relation on points and lines, such that (1) P and L are disjoint sets, (2) the union of P and L is nonnull, and (3) I is a subset of P × L, the cartesian product of P and L.