Sign In
Email Address:
Password:
Register
|
Lost Password
Home
|
Activities
|
Dictionary
|
Objectives
Forum
|
Contact Us
Hz
( hertz )
an internationally used frequency unit; equals one cycle per second; named after the German physicist Heinrich Hertz
Example Sentence:
“ A human being can hear sound waves from 20Hz to 20,000Hz.”
Part of Speech:
noun (thing)
Copyright © 2010 English4it.com |
Legal Information
|
Bookstore
|
About Us
|
Partners
|
Contact Us