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There are 4 thirteen-letter words beginning with OPISTH

OPISTHOBRANCHopisthobranch n. (Zoology) A gastropod with gills behind the heart, formerly thought to belong to a single group.
opisthobranch adj. (Of gills) Placed behind the heart.
opisthobranch adj. (Of a gastropod) Having gills placed behind the heart.
OPISTHOGRAPHSopisthographs n. Plural of opisthograph.
OPISTHOGRAPH n. a manuscript or slab inscribed on both back and front.
OPISTHOGRAPHYopisthography n. A writing upon the back of anything, as upon the back of a sheet already written upon on one side.
OPISTHOGRAPHY n. inscribing on the back as well as the front.
OPISTHOSOMATAopisthosomata n. Plural of opisthosoma.
OPISTHOSOMA n. the abdomen of a spider or other arachnid.

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: 13 words
  • Scrabble in French: 2 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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