To save this word, you'll need to log in.
ido·crase | \ ˈī-də-ˌkrās 
, ˈi-, -ˌkrāz \
, ˈi-, -ˌkrāz \Definition of idocrase
: a mineral that is a complex silicate especially of calcium, magnesium, iron, and aluminum
Keep scrolling for more
Comments on idocrase
What made you want to look up idocrase? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Semantic Drift Quiz
- Which of the following was once a synonym for fun?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share idocrase
Time Traveler for idocrase
The first known use of idocrase was in 1804
See more words from the same year