MDBG Mobile Chinese English Dictionary (iPhone, Android, Windows Phone)

颚	è	jaw / palate
颐	yí	(literary) chin; jaw / (literary) to foster; to nurture; to protect
颌	hé	(bound form) jaw
下颌	xià hé	lower jaw / mandible
下颚	xià è	mandible (lower jaw)
上颌	shàng hé	maxilla (upper jaw)
牙关	yá guān	jaw / mandibular joint
笑掉大牙	xiào diào dà yá	to laugh one's head off / ridiculous / jaw-dropping
先礼后兵	xiān lǐ hòu bīng	lit. peaceful measures before using force (idiom) / fig. diplomacy before violence; jaw-jaw is better than war-war
腮颊	sāi jiá	cheek / jaw
喜子	xǐ zi	Tetragnatha (long-jawed spider) / same as 蟢子
蟢子	xǐ zi	Tetragnatha (long-jawed spider)
戽斗	hù dǒu	bailing bucket (tool for irrigating fields) / protruding lower jaw
颚部	è bù	jaw
蟏蛸	xiāo shāo	long-jawed orb weaver, aka long-jawed spider (family Tetragnathidae)
上颌骨	shàng hé gǔ	maxilla (upper jaw)
下颌骨	xià hé gǔ	lower jaw / mandible
下颔	xià hàn	lower jaw; mandible
四方脸	sì fāng liǎn	square-jawed face
压板	yā bǎn	vise jaw / press board (machine)