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List of 13-letter words containing

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There are 3 thirteen-letter words containing A, 2C, 2F and S

EFFICACIOUSLYefficaciously adv. In an efficacious manner.
EFFICACIOUS adv. having the power to produce a desired effect.
INEFFICACIOUSinefficacious adj. Incapable of having the intended consequence.
inefficacious adj. Not effective.
INEFFICACIOUS adj. lacking the power to produce a desired effect.
INFRASPECIFICinfraspecific adj. (Taxonomy) pertaining to a taxon at a rank lower than species, such as subspecies (in certain kingdoms…
INFRASPECIFIC adj. of taxonomic divisions of a lower rank than species.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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