Having nine leaves or leaflike parts; used in botanical and biological descriptions.
From Greek 'ennea' (nine) + 'phyllon' (leaf), with '-ous' as the adjectival suffix. The term appears in specialized botanical literature describing plant structures.
The '-phyllon' root in 'enneaphyllous' is the same one used in 'chlorophyll' and 'phylogeny'—and once you spot these recurring roots, you realize that technical vocabulary isn't random but built from a small set of meaningful Greek pieces that combine endlessly.
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