List of 13-letter words ending with

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There are 12 thirteen-letter words ending with IONATE

cofractionate — v. To fractionate a mixture of components together.
commissionate — v. (Obsolete, transitive) To commission.
compassionate — adj. Having, feeling or showing compassion (to or toward someone). — adj. Given to someone as an exception because of a family emergency… — adj. (Obsolete) Inviting or asking for pity.
contortionate — adj. Contorted or contorting.
dispassionate — adj. Not showing, and not affected by, emotion, bias, or prejudice.
nonpassionate — adj. Not passionate.
pentathionate — n. (Inorganic chemistry) Any salt of pentathionic acid.
perfectionate — v. (Transitive, now rare) To make perfect or complete; to perfect.
proportionate — adj. In proportion; proportional; commensurable. — adj. Harmonious and symmetrical. — v. (Transitive) To make proportionate.
refractionate — v. To fractionate again or further.
tetrathionate — n. (Inorganic chemistry) The oxyanion S₄O₆^2- derived from tetrathionic…
unquestionate — adj. (Scotland, obsolete) Unquestioned.

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