die-off

play
noun \ ˈdī-ˌȯf \

Definition of die-off

:a sudden sharp decline of a population of animals or plants that is not caused directly by human activity

First Known Use of die-off

1936


die off

play
verb \ ˈdī-ˈȯf \

Definition of die off

intransitive verb
:to die sequentially either singly or in numbers so that the total number is greatly diminished

First Known Use of die off

1697


Learn More about die-off


Seen and Heard

What made you want to look up die-off? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

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

WORD OF THE DAY

of yeast or being unsettled or frivolous

Get Word of the Day daily email!

Test Your Vocabulary

Merriam-Webster's New Words Quiz—Fall 2017 Edition!

  • young-plant-shoots
  • Which of the following is a new sense of the word bunny?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

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