follow Dictionary.com

Do you know ghouls from goblins and ghosts?

actinon

[ak-tuh-non] /ˈæk təˌnɒn/
noun, Chemistry
1.
a chemically inert, gaseous, short-lived isotope of radon that is a member of the actinium series. Symbol: An; atomic number: 86; atomic weight: 219.
Also called actinium emanation.
Origin
1925-1930
1925-30; < Neo-Latin; see actinium, -on2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for actinon

actinon

/ˈæktɪˌnɒn/
noun
1.
a radioisotope of radon that is a decay product of radium. Symbol: An or 219Rn; atomic no: 86; half-life: 3.92s
2.
another name for actinide
Word Origin
C20: New Latin, from actinium + -on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Word Value for actinon

9
12
Scrabble Words With Friends