Dictionary.com
Thesaurus.com

toolbar

American  
[tool-bahr] / ˈtulˌbɑr /

noun

Computers.
  1. a row or rows of buttons on a display screen that are clicked on to select various functions in a software application or web browser.


toolbar British  
/ ˈtuːlˌbɑː /

noun

  1. a horizontal row or vertical column of selectable buttons displayed on a computer screen, allowing the user to select a variety of functions

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of toolbar

First recorded in 1960–65; tool + bar 1