To save this word, you'll need to log in.
di·a·base | \ ˈdī-ə-ˌbās 
\
\Definition of diabase
2 chiefly British : an altered basalt
3 : a fine-grained rock of the composition of gabbro but with an ophitic texture
Keep scrolling for more
Other Words from diabase
diabasic \ ˌdī-ə-ˈbā-sik \ adjective
\ adjectiveKeep scrolling for more
Comments on diabase
What made you want to look up diabase? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
More Confusing Words—Quiz
- The magician
______moved the selected card to the top of the deck.
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
- More Confusing Words—Quiz
How many of these commonly confused words do you know?
Take the quiz - Name that Thing: Toys and Games Edition
It's all fun and games until someone beats your high score.
Take the quiz - Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz - Citation
Do you know the person or title these quotes describe?
Play the game
Share diabase
Time Traveler for diabase
The first known use of diabase was in 1811
See more words from the same year