headrelated

Headrelated is an adjective used to indicate relation to the head. In standard English it is typically written head-related or as two words; the closed form headrelated is uncommon and usually limited to code identifiers or URLs.

In medicine and anatomy, head-related describes structures, injuries, or phenomena pertaining to the skull, brain, scalp, or sensory organs of the head. Examples include head-related injuries, head-related pain, and head-related neurological symptoms.

In acoustics and audio technology, head-related transfer function—often abbreviated HRTF—describes how sound is filtered by the listener's head, ears, and torso before reaching the eardrum. It is a central concept in spatial audio and virtual reality sound.

In safety, ergonomics, and product design, head-related considerations address protection of the head, helmet standards, and prevention of head-related injuries in workplace and sports settings.

The term is primarily used as a compound adjective; when describing research topics or standards, it helps distinguish head-centered phenomena from other bodily regions. It can also appear in discussions of cranial or cephalic topics, where head-related aspects are the focus.

See also cranial, cephalic, head injury, HRTF.