In anatomy, a bone or bony structure that is related to or situated near the ethmoid bone and alar (wing-like) structures of the skull.
From 'ali-' (Latin 'ala' meaning wing) + 'ethmoid' (from Greek 'ethmos' meaning sieve, named for the sieve-like perforations in this skull bone). This technical term combines anatomical descriptors to identify a specific cranial feature.
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