kerma

Not valid in Scrabble

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

Scrabble points
11
Words With Friends
12
Letters
5

Definition of kerma

1 sense · 1 part of speech · etymology included

noun

  1. (countable, uncountable)The sum of the initial kinetic energies of all the charged particles liberated by uncharged ionizing radiation (neutrons and photons) in a sample of matter, divided by the mass of the sample.

Definitions from Wiktionary, CC BY-SA.

Etymology

Acronym for kinetic energy released in matter.

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