visometer

Not valid in Scrabble

It's a recognised English word, but it isn't in the official NASPA Scrabble word list.

Definition of visometer

1 sense · 1 part of speech

A device for measuring the degree of visibility in the atmosphere, based on the principle of the extinction photometer.

Definitions from Wiktionary, CC BY-SA.

2 plays · some not in Scrabble

200+ playable · top: OVERTIMES (14 pts)

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