Top Definition
of or relating to a penis consisting of a single atom;
"Phill and Matt have monatomic knobs"
by mikkachops September 20, 2007
1 more definition
7 Words related to monatomic
Phrase used to describe an element whose atoms are not connected to each other in its pure (unreacted) state.
Helium, Xenon, Sodium...take your pick
by Shawn B. September 29, 2003

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×