bo·​ro·​hy·​dride ˌbȯr-ō-ˈhī-ˌdrīd How to pronounce borohydride (audio)
: the anion BH4 of boron and hydrogen that is used especially as a reducing agent and as a source of hydrogen atoms
also : any of various compounds (as of metals) containing the borohydride anion

Example Sentences

Recent Examples on the Web Currently, the options include lithium hydride, sodium borohydride, and an emerging class of ultraporous nanotech materials. Peter Schwartz And Doug Randall, WIRED, 1 Apr. 2003

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'borohydride.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of borohydride was in 1940

Dictionary Entries Near borohydride

Cite this Entry

“Borohydride.” Dictionary, Merriam-Webster, Accessed 26 Mar. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

A Good Old-Fashioned Quiz

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?