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.

2 days ago · Your chin might just be an evolutionary side effect of the human face shrinking over millions of years.

Feb 18, 2026 · “The chin evolved largely by accident and not through direct selection, but as an evolutionary byproduct resulting from direct selection on other parts of the skull,” says study co …

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 …

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.

Jan 24, 2026 · The chin is one of our most familiar features, yet scientists still debate why we evolved it. Here’s a breakdown of what we know about it so far.

Oct 31, 2025 · While the general shape of your chin is typically determined by genetics, age and lifestyle can change its appearance. Read on to figure out what basic chin shape you have. From there, we'll …

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 …

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 …

Feb 18, 2026 · 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 …