Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
Zeil
zein
Zeitgeist
zelkova
zemindar
zemstvo
Zen
Zen Buddhism
zenana
Zend
Zend-Avesta
zener diode
Zenica
zenith
zenithal projection
Zenker’s degeneration
zeolite
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

zeptosecond
zep·to·sec·ond [ zéptō sèkənd ] (plural zep·to·sec·onds)


noun 
Definition:
 
one-sextillionth of second: a unit of time equal to one-sextillionth of a second
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft