Resembling or relating to gadids (cod family fish) or the characteristics typical of that fish family.
From Gadus (the genus name for cod) plus -oid (a suffix meaning resembling or of the nature of), used in zoology to describe fish similar to cods.
The -oid suffix in biology is fascinating because it lets scientists describe similarity without claiming identity—'gadoid' lets them say 'like a gadid' rather than 'is a gadid,' which is crucial for distinguishing related but separate species and families.
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