by konichiwakitty August 15, 2003

Lethal Dosage. L.D. is a pharmacological term used by the medical industry to standardize the toxicity of chemicals, specifically. In huge medical books, medical scientists and doctors have a standardisation for every single thing that you can possibly have in your body.
by Dybbuk March 08, 2005

by AVNX October 05, 2007

"When I saw that girl throwing up in the bathroom i yelled, 'are you alright L.D?'"
"I saw the town L.D today."
"I saw the town L.D today."
by K$dawg February 27, 2009

L.D. Has an amazing personality. He knows how to have a good laugh and have a good time. He's always there to cheer you up when you feel blue. He cusses a bunch and even talks dirty sometimes, but he's super cool. And the one thing he will never do is let down his girl. He always lets her know he loves her and wouldn't do anything to hurt that.
by Br111_th3_b43 March 03, 2015

Lethal Dose 50%-----Kills 50% of the test subjects.
by Tyrant666 April 13, 2007

by RealHeartBroken November 18, 2021
