tautochrone is a valid English word

Scrabble validity: valid ( international - Sowpods ), invalid ( US - Twl06 )
iScramble validity: invalid
QuickWords validity: invalid

Meanings

Noun (COUNTABLE)

(mathematics) A curve, such that a heavy body, descending along it by the action of gravity, will always arrive at the lowest point in the same time, wherever in the curve it may begin to fall. Category:en:Curves
• An inverted cycloid with its base horizontal is a tautochrone.

tautochrone is a Scrabble valid word

t1a1u1t1o1c3h4r1o1n1e1

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is not valid in Scrabble ✘
• 16 points

tautochrone is not an iScramble, QuickWords valid word

t1a2u3t4o5c6h7r8o9n10e11

• The word is not valid in iScramble ✘
• The word is not valid in QuickWords ✘
• 66 points

Same letters words (Anagrams)

• COUNTEROATH

Same letters plus one

• AUTOCOHERENT
• COUNTEROATHS
• TAUTOCHRONES

Same letters minus one

• CAROTENUTO
• COTHURNATE