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There are 7 twelve-letter words beginning with ORTHOG

ORTHOGENESESorthogeneses n. Plural of orthogenesis.
ORTHOGENESIS n. the belief that biological variation results in new species, always along the same path.
ORTHOGENESISorthogenesis n. (Evolutionary theory, historical) The hypothesis that evolution tends toward a certain goal, at least at some scales.
ORTHOGENESIS n. the belief that biological variation results in new species, always along the same path.
ORTHOGENETICorthogenetic adj. Of or pertaining to orthogenesis / orthogenetics.
ORTHOGENETIC adj. pertaining to correction of children's mental defects.
ORTHOGNATHICorthognathic adj. Orthognathous.
ORTHOGNATHIC adj. having a lower jaw that neither projects nor recedes, also ORTHOGNATHOUS.
ORTHOGONALLYorthogonally adv. In an orthogonal manner; perpendicularly; at right angles.
ORTHOGONAL adv. at right angles; unrelated or independent of each other.
ORTHOGRAPHERorthographer n. Someone who devises an orthography.
orthographer n. (Informal) Someone who is knowledgeable in spelling rules; someone who spells words correctly.
ORTHOGRAPHER n. a correct speller.
ORTHOGRAPHICorthographic adj. Of a projection used in maps, architecture etc., in which the rays are parallel.
orthographic adj. Of, or relating to, orthography.
ORTHOGRAPHIC adj. relating to orthography, the part of language study that deals with letters and spelling, also ORTHOGRAPHICAL.

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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See this list for:

  • English Wiktionary: 8 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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