x

Folder Sign In:

Incorrect Username / Password

Email Address:

 

Password:

 

Create New Account      Password Reminder

x

Folder Sign In:

You've Successfully Logged In!

x

Create New Account:

You do not need to sign in to use this database. However, signing in gains you access to a personal folder that you can use to save items. These items will be archived and made available to you during future database sessions.

Email Address:

 

Password:

 

Already Have Account      Password Reminder

x

Folder Sign In:

You've Successfully Created a New Account!

x

Password Reminder:

Enter your email address and we will send you your password for your Saved Items Folder Account Sign In.

E-mail Address:

 

x

Password Reminder:

Reminder Email sent!

x

E-mail Article:

Send this article to the following E-mail address. Use commas to separate multiple addresses.

E-mail Address:

 

x

E-mail Article:

Article sent!

x
Citation Information
How to Cite
Hendrickson, Robert. "acid test." Writer's Reference Center. Facts On File, Inc. Web. 18 Apr. 2025. <http://fofweb.infobase.com/wrc/Detail.aspx?iPin=EWPO00072>.
x
Record URL
To refer to this page or share this page with others, copy and paste this link:
http://fofweb.infobase.com/wrc/Detail.aspx?iPin=EWPO00072

acid test

Definition 
This expression dates back to frontier days in America, when peddlers determined the gold content of objects by scratching them and applying nitric acid. Since gold, which is chemically inactive, resists acids that corrode other metals, the (nitric) acid test distinguished it from copper, iron, or similar substances someone might be trying to palm off on the peddlers. People were so dishonest, or peddlers so paranoid, that the term quickly became part of the language, coming to mean a severe test of reliability.

Return to Top Return to Top