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请输入英文单字，中文词皆可：

chin    音标拼音: [tʃ'ɪn]
n. 下巴,颏
v.
n. 闲谈,聊天

下巴,颏闲谈,聊天

chin
n 1: the protruding part of the lower jaw [synonym: {chin},
{mentum}]
2: Kamarupan languages spoken in western Burma and Bangladesh
and easternmost India [synonym: {Kuki}, {Chin}, {Kuki-Chin}]
v 1: raise oneself while hanging from one's hands until one's
chin is level with the support bar [synonym: {chin}, {chin up}]

Chin \Chin\ (ch[i^]n), n. [AS. cin, akin to OS. kin, G kinn,
Icel. kinn, cheek, Dan. & Sw. kind, L. {gena}, Gr. ?; cf.
Skr. hanu. [root]232.]
1. The lower extremity of the face below the mouth; the point
of the under jaw.
[1913 Webster]

2. (Zool.) The exterior or under surface embraced between the
branches of the lower jaw bone, in birds.
[1913 Webster]

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  • Chin - Wikipedia
    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
  • Why Do Humans Have Chins? - Smithsonian Magazine
    Perhaps the most common explanation is that our chin helps buttress the jaw against certain mechanical stresses
  • Only humans have true chins, and that may be an accident - Earth. com
    It’s easy to overlook, but that tiny feature – the human chin – is something no other living primate has Chimpanzees, gorillas, and even our closest extinct relatives, such as Neanderthals, all lack a true chin For decades, scientists have debated why this distinctive feature evolved
  • A Biologist Explains Why Humans Have Chins. Hint . . . - Forbes
    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
  • CHIN Definition Meaning - Merriam-Webster
    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
  • What Is a Chin and Why Do Humans Have Them? - Biology Insights
    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 even our ancient ancestors
  • The unique human body part that evolution cannot explain
    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
  • What Is a Chin? Its Anatomy, Evolution, and Variations
    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 all other living species
  • Only Humans Have Chins - Discover Magazine
    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 in humans as a way to resist biomechanical stresses related to mastication, or in simpler words, chewing
  • 13 Different Types of Chins: A Comprehensive Guide
    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 show you how to make any chin shape look its best





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