In zoological anatomy, structures or organs relating to the abdomen, particularly used in taxonomic descriptions of animals.
From Latin 'abdominalia', the neuter plural of 'abdominalis' (abdominal), derived from 'abdomen' (belly). This is a scientific Latin form used for technical classification.
This word reveals how scientists long used Latin to describe animal parts so that researchers in different countries could understand each other without translation—it's basically fossilized international scientific cooperation.
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