Forehead in the context of "Medical thermometer"

A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as sight, hearing, smell, and taste. Some very simple animals may not have a head, but many bilaterally symmetric forms do, regardless of size.

Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissue concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head.

Rickets (scientific nomenclature: rachitis; from Greek ῥαχίτης rhakhítēs, meaning "in or of the spine" which was chosen as a back-formation, see Etymology), is a condition that results in weak or soft bones in children and may have either dietary-deficiency or genetic causes. Symptoms include bowed legs, stunted growth, bone pain, large forehead, and trouble sleeping. Complications may include bone deformities, bone pseudofractures and fractures, muscle spasms, or an abnormally curved spine. The analogous condition in adults is osteomalacia.

One can characterise a child who appears to suffer from rickets as rachitic.

Bangs (North American English) or a fringe (British English, Australian English and New Zealand English) are strands or locks of hair that fall over the scalp's front hairline to cover the forehead, usually just above the eyebrows, though can range to various lengths. While most modern Western hairstyles cut the bangs straight, they may also be shaped in an arc or left ragged.

A headbutt or butt is a targeted strike with the head, typically involving the use of robust parts of the headbutter's cranium as the area of impact. The most effective headbutts strike the most sensitive areas of an opponent, such as the nose, using the stronger bones in the forehead (frontal bone) or the back of the skull (occipital or parietal bone). The word is both a noun and a verb.

In the human skull, the frontal bone or sincipital bone is an unpaired bone which consists of two portions. These are the vertically oriented squamous part, and the horizontally oriented orbital part, making up the bony part of the forehead, part of the bony orbital cavity holding the eye, and part of the bony part of the nose respectively. The name comes from the Latin word frons (meaning "forehead").