1 definition by Pearl Winonna Tonka

Top Definition
Two consecutive periods of a science lab.
Kim:Do you have a free period today after 6th period Bio?
Jasper: No, I have a double lab every Thursday during 6th and 7th periods.
by Pearl Winonna Tonka February 29, 2008
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.