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 There are 12 twelve-letter words containing A, C, E, H, L, M and U| ACHLAMYDEOUS | • achlamydeous adj. (Botany) having no perianth. • ACHLAMYDEOUS adj. without a perianth.
 |  | ALPHANUMERIC | • alphanumeric adj. Consisting of, or limited to, letters and/or numbers, especially the characters A to Z (lowercase and… • alphanumeric adj. Consisting of these characters plus punctuation and other special characters.
 • alphanumeric n. An alphanumeric character.
 |  | AMPHICOELOUS | • amphicoelous adj. (Zoology, of vertebrae) Having both ends concave; biconcave. • AMPHICOELOUS adj. of the vertebrae of most fishes and some amphibians, concave at the anterior and posterior ends.
 |  | CATECHUMENAL | • catechumenal adj. Of or pertaining to a catechumen, or to the process and preparation for baptism. • CATECHUMENAL adj. of or like a catechumen, also CATECHUMENICAL.
 |  | EURHYTHMICAL | • eurhythmical adj. Harmonious. • EURHYTHMICAL adj. relating to eurhythmy, rhythmical movement or order, also EURHYTHMIC, EURYTHMIC, EURYTHMICAL.
 |  | HIBERNACULUM | • hibernaculum n. (Zoology) The place where a hibernating animal shelters for the winter. • hibernaculum n. (Botany) A bud, case, or protective covering that a plant uses to survive the challenging environmental…
 • HIBERNACULUM n. (Latin) a shelter occupied during the winter by a dormant animal (as an insect or reptile).
 |  | MISCHANCEFUL | • mischanceful adj. Unlucky. • MISCHANCEFUL adj. (archaic) full of mischance, unlucky.
 |  | MULTICHAMBER | • multichamber adj. Composed of multiple chambers. |  | MULTICHANNEL | • multichannel adj. That uses multiple channels to process, receive, or transmit signals. • MULTICHANNEL adj. having many channels.
 |  | PLEIOCHASIUM | • pleiochasium n. (Botany) An inflorescence in which several buds come out at the same time. • PLEIOCHASIUM n. a cymose inflorescence in which each branch bears more than two lateral branches.
 |  | UNMECHANICAL | • unmechanical adj. Not mechanical. • UNMECHANICAL adj. not mechanical.
 |  | UNMETHODICAL | • unmethodical adj. Not methodical. • UNMETHODICAL adj. not methodical.
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 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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