Dictionary.com
Thesaurus.com

jacobsite

American  
[jey-kuhb-zahyt] / ˈdʒeɪ kəbˌzaɪt /

noun

  1. a rare magnetic mineral, manganese iron oxide, MnFe 2 O 4 , similar to magnetite.

Etymology

Origin of jacobsite

1865–70; named after Jacobsberg Swedish locality; see -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training