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There are 18 twelve-letter words beginning with AMPHI

AMPHIBIOUSLYamphibiously adv. In the manner of an amphibian.
amphibiously adv. In an amphibious manner.
AMPHIBIOUS adv. adapted for both land and water.
AMPHIBLASTICamphiblastic adj. (Biology) Segmenting unequally; said of telolecithal ova with complete segmentation.
AMPHIBLASTIC adj. of animal ova, showing complete but unequal cleavage after fertilization.
AMPHIBOLITESamphibolites n. Plural of amphibolite.
AMPHIBOLITE n. rock composed of amphibole; hornblende.
AMPHIBRACHICamphibrachic adj. Consisting of amphibrachs, metrical feet consisting of either a long syllable between two that are short…
AMPHIBRACHIC adj. of or like an amphibrach, a foot of three syllables, the middle one long, the first and last short.
AMPHICOELOUSamphicoelous 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.
AMPHICTYONICamphictyonic adj. (Ancient Greece) Of or relating to the amphictyons or their League or Council.
AMPHICTYONIC adj. applied to the ancient Greek council of state-deputies.
AMPHIDENTATEAMPHIDENTATE adj. of a ligand, able to coordinate through either of two different atoms, also AMBIDENTATE.
AMPHIDIPLOIDamphidiploid adj. (Genetics) Having a diploid set of chromosomes from each of its parents.
amphidiploid n. (Biology) Such an organism.
AMPHIDIPLOID n. a hybrid having a complete diploid chromosome set from each parent.
AMPHIGASTRIAAMPHIGASTRIUM n. a scalelike leaf on the ventral side of some liverworts.
AMPHISBAENAEamphisbænæ n. Plural of amphisbæna.
AMPHISBAENA n. a worm-lizard; also, a mythical two-headed serpent or lizard.
AMPHISBAENASamphisbaenas n. Plural of amphisbaena.
amphisbænas n. Plural of amphisbæna.
AMPHISBAENA n. a worm-lizard; also, a mythical two-headed serpent or lizard.
AMPHISBAENICamphisbaenic adj. (Mythology) Relating to an amphisbaena.
AMPHISBAENIC adj. of or like an amphisbaena.
AMPHISTOMOUSamphistomous adj. (Zoology) Having a sucker at each extremity.
AMPHISTOMOUS adj. having a sucker at either end, as some worms.
AMPHISTYLARSAMPHISTYLAR n. a temple having a set of columns at both ends or at both sides.
AMPHITHEATERamphitheater n. American spelling form of amphitheatre.
AMPHITHEATER n. an oval or circular building with rising tiers of seats ranged about an open space.
AMPHITHEATREamphitheatre n. An open, outdoor theatre (which may be a theatre in the round, or have a stage with seating on only…
amphitheatre n. (Geology) A natural formation of a similar shape, where a steep mountain or slope a particular rock…
AMPHITHEATRE n. an oval or circular building with rising tiers of seats ranged about an open space.
AMPHITHECIUMAMPHITHECIUM n. the outer layer of cells of the embryo of mosses and liverworts that develops into the outer parts of the spore-bearing capsule.
AMPHITROPOUSamphitropous adj. (Botany) Having the ovule bent so that the ends are near each other.
AMPHITROPOUS adj. of an ovule, with its point of attachment in the middle.

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: 61 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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