The chin is the forward pointed part of the anterior mandible (mental region) below the lower lip. A fully developed human skull has a chin of between 0.7 cm and 1.1 cm.

1 day ago · The chin is therefore what’s known as a spandrel – a useless evolutionary feature named after the empty triangular spaces that are created by the construction of archways in buildings.

1 day ago · The monumental depiction of a man hunched forward, right hand resting against his chin, is synonymous with humanity’s capacity for deep contemplation, abstract thinking, and self-reflection.

The meaning of CHIN is the lower portion of the face lying below the lower lip and including the prominence of the lower jaw. How to use chin in a sentence.

An Evolutionary Accident Human faces wouldn't look complete without a chin, anatomically defined as a bony protrusion that extends from the lower jaw. Previous studies suggested that chins evolved ...

2 days ago · Dashiell Hammett mentioned Sam Spade's jutting chin in the opening sentence of his novel, "The Maltese Falcon." Spade's chin was among the facial features Hammett used to describe …

Aug 24, 2025 · The chin is the distinct, forward-projecting part of the human face located at the bottom of the lower jaw. It is a defining feature of modern humans, setting us apart from other primates and …

1 day ago · In simplest terms, a chin is a bony projection of the lower jaw. So why is it there? How and why did it evolve? A new study digs in.

Oct 23, 2025 · The chin is a familiar feature of the human face, serving as the defining point of the lower jaw. This bony prominence is a characteristic of human anatomy that sets Homo sapiens apart from …

Dec 31, 2024 · The chin provides structural support to the lower face and serves as an attachment site for muscles involved in facial expressions, speech, and chewing. Its shape and size contribute …