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Updated June 2026
A chemistry term describing a complex ion containing water molecules as ligands.
“The aquo complex released its water molecules upon heating.”
Q without U after — very unusual.
Worth 13 points. Q is worth 10.
Change a single letter of “aquo” to make these 4-letter words — useful for Wordle and crossword clues.
Look up aquo in an authoritative dictionary for full definitions, pronunciation, and etymology.

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