tridiagonal is a valid English word

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

Meanings

Adjective (NOT COMPARABLE)

(linear algebra of a matrix) Having nonzero elements only in the main diagonal and the diagonals directly above and below it

tridiagonal is not a Scrabble valid word

t1r1i1d2i1a1g2o1n1a1l1

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

tridiagonal is not an iScramble, QuickWords valid word

t1r2i3d4i5a6g7o8n9a10l11

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

Same letters words (Anagrams)

• none

Same letters plus one

• DARLINGTONIA
• GLADIATORIAN
• GLADIATORING

Same letters minus one

• ARALDITING
• DITRIGONAL
• DRAGONTAIL
• GLADIATION
• TRIGONALID