"Thaumatrope" validity in different word game dictionaries

Dictionary Validity
Scrabble US(US/Canada/Thailand - TWL/NWL) No
Scrabble UK(International - SOWPODS/CSW) Yes
Words with Friends(WWF) Yes

"thaumatrope" Definition

  1. an optical instrument or toy that shows the persistence of an impression upon the eye and that consists of a card having on its opposite faces different designs that appear to the eye combined in a single picture when the card is whirled rapidly round a diameter by the strings that hold it

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