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Is SIGMOIDAL a valid Scrabble word?

Yes, SIGMOIDAL is a valid word in US Scrabble and UK Scrabble, worth 13 points.

Base score before bonus squares; blank tiles score zero.

What does SIGMOIDAL mean?

  1. adjective

    of or relating to the sigmoid flexure in the large intestine

Definitions from WordNet 3.1, Princeton University.

Points

13

Scrabble

16

Words With Friends

9

Letters

S (1) + I (1) + G (2) + M (3) + O (1) + I (1) + D (2) + A (1) + L (1) = 13 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Valid
  • Scrabble (UK & worldwide)Valid
  • Words With FriendsListed

Scrabble lists: NWL2023 (US & Canada) and CSW24 (UK & worldwide). WWF uses our ENABLE reference plus verified additions. “Listed” and “Not listed” describe that reference; check acceptance in the game. Sources reviewed 2026-10-03.

Hooks for SIGMOIDAL

SIGMOIDAL has no one-letter front or back hooks in US Scrabble. Adding a single letter to either end does not make another word in that list.

Front hooks0

None — nothing can be added to the front.

Back hooks0

None — nothing can be added to the end.

Words you can make from SIGMOIDAL

The 60 highest-scoring words using these letters.

Study SIGMOIDAL and related words

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