No, combining form is not playable
...but would be worth 27 points.
Word not found in any official scrabble dictionaries.
"Combining Form" Definition
noun
A modified form of an independent word that occurs only in combination with words, affixes, or other combining forms to form compounds or derivatives, as electro- (from electric) in electromagnet or geo- (from greek geō-, from gē "earth”) in geochemistry.
A form of a word used for combining with other words or other combining forms to make new words. a combining form may conjoin with an independent word (e.g., mini- + skirt), another combining form (e.g., photo- + -graphy) or an affix (e.g., cephal + -ic); it is thus distinguished from an affix, which can be added to either a free word or a combining form but not solely to another affix (e.g., iceland + -ic but not pro- + -ic). it can also be distinguished historically from an affix when it is borrowed from another language in which it is descriptively a word (e.g., the french mal gave the english mal- in malodorous) or a combining form (e.g., the greek kako-, a combining form of kakos, gave the english caco- in cacography).
In computer typography, the form of an accent that can be combined with other characters, as opposed to a single character that includes the accent.
A bound form used only in compounds.
A linguistic form that occurs only in compounds or derivatives and can be distinguished descriptively from an affix by its ability to occur as one immediate constituent of a form whose only other immediate constituent is an affix (as in ) or by its being derived from an independent word (as - representing in or representing in ) or can be distinguished historically from an affix by the fact that it is borrowed from another language in which it is descriptively a word or a combining form (as French giving English in ).
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