(informal) Someone who is very interested in technology.

Having a shock of hair on one's head.

(slang) Very or intensely (in describing mental states).

Alternative spelling of pinheaded

plural of head loss

The pressure lost in a hydraulic system as fluid moves through a pipeline.

double-headed; two-headed

Alternative form of coneheaded

Alternative form of beakhead.

plural of running heading (alternative form of running headlines).