Relating to or characteristic of organisms with an abdomen; in zoology, describing creatures with a distinct abdominal region.
From Latin 'abdominalian', formed by combining 'abdominal-' (relating to the belly) with the English suffix '-ian' (pertaining to or characterized by).
This zoological term highlights how scientists created a whole system of adjectives and nouns to classify body types—calling something 'abdominalian' tells you the organism has a distinct belly separate from its head and thorax.
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