Synonyms of the word 
TETRAMEROUS → MANY-SIDED - MULTILATERAL
tetramerous
- adj. (botany) in four parts: in a flower each whorl (of flower parts) has four flower parts.
many-sided
- adj. Having many sides; polygonal.
- adj. Having many aspects.
multilateral
- adj. Having many sides or points of view.
- adj. Involving more than one party (often used in politics to refer to negotiations, talks, or proceedings…
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