plural mandibles
1
: jawbone
2
: either the upper or lower part of a bird's beak
3
: a part of an insect's mouth that looks like a jaw and is often used for biting things
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“Mandible.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/mandible. Accessed 14 Apr. 2026.
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