To save this word, you'll need to log in.
ploi·dy | \ ˈplȯi-dē 
\
\Definition of ploidy
: degree of repetition of the basic number of chromosomes
Keep scrolling for more
Keep scrolling for more
More Definitions for ploidy
ploidy
nounploi·dy | \ ˈplȯid-ē \
\ plural ploidies
Medical Definition of ploidy
: degree of repetition of the basic number of chromosomes
Comments on ploidy
What made you want to look up ploidy? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
July 2020 Words of the Day Quiz
- Which is a synonym of mien?
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
- July 2020 Words of the Day Quiz Take the quiz
- Difficult Spelling Words Quiz
Can you spell these 15 tricky spelling words?
Take the quiz - Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz - Dictionary Devil
The dictionary has been scrambled—can you put it back together?
Play the game
Share ploidy
Time Traveler for ploidy
The first known use of ploidy was in 1939
See more words from the same year