a high speed aircraft-like craft flying at a short distance above sea surface; WIG in short

of insurance claim it means "no question asked"; e.g. paying a claim "without prejudice" means that although there is no strict liability under the terms of the insurance policy the insurer may decide to pay without contention on this occasion; however this settlement should not be used as a basis in the future when such similar claims arise

a kind of gearing which consists of a worm engaging a worm wheel the axes of both are at right angles to each other; the worm being restricted by fixed bearings can only rotate without moving in an axial direction; the screw thread on the worm engages the teeth on the worm wheel and when rotated the worm pulls or pushes the worm wheel causing rotation; used when large speed reduction ratio is desired such as in electric winches capstans etc.

an electrical safety barrier that by design inherently limits the voltages and currents appearing in the hazardous location when faults occur on the circuit; it uses a combination of fuse resistors and zener diodes to achieve safety