(idiomatic, informal) A dimwit, a fool / A melon-headed whale

That part of several electromechanical devices that converts electrical signals into digital or analog information stored on a magnetic or optical medium

That part of several electromechanical devices that converts digital or analog information stored on a magnetic or optical medium into electrical signals

(nautical) The farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall, dam or lock.

plural of heads-up

plural of head game

Third-person singular simple present indicative form of head game

plural of wig head

A stand for a wig, shaped roughly like a head.

plural of propeller head