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.

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.

She was in a good position underneath the basket and was able to chin the rebound. When you get the ball, chin it so as to protect it from being stolen by the other team.

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. keep one's chin up, to maintain one's courage and optimism during a period of adversity. 2. take it on the chin, Informal. a. to be defeated thoroughly. b. to endure punishment stoically.

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 …

5 days ago · The human chin has been fertile ground for arguments between scientists over its purpose. As with testicles, there are half a dozen plausible ideas to explain the evolution of the human chin.

The chin (a.k.a. the mental protuberance) lies in the midline of the mandible anteriorly. The jaw line (or the lower border of the body of mandible) can be seen extending laterally from the chin, on either side.

Jan 4, 2012 · Perhaps the most common explanation is that our chin helps buttress the jaw against certain mechanical stresses.