actineon
English
Noun
actineon
(
uncountable
)
(
obsolete
)
Obsolete form of
actinon
(
“
radon-219
”
)
, an isotope of
radon
.
Coordinate terms
radeon
(radon-222)
thoreon (radon-220)
Anagrams
cat-o'-nine
,
cat-o-nine
,
enaction
,
octennia