Definition of "underhead" in English

noun

1. (obsolete) A blockhead, or stupid person; a dunderhead.

2. The area directly below the head of something. (any sense)

3. The base of a railroad track.

4. (manufacturing, accounting, dated) direct costs.

adjective

1. (engineering) Beneath the head of a mechanical component.

2. (of a railroad crossing) Such that the train track goes over the pathway of cars or pedestrians.

3. (film, lighting) Coming from below.

adverb

1. In an underhead location.