Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

insecticide

play
noun in·sec·ti·cide \in-ˈsek-tə-ˌsīd\

Simple Definition of insecticide

  • : a chemical substance that is used to kill insects

Full Definition of insecticide

  1. :  an agent that destroys insects

Origin of insecticide

International Scientific Vocabulary


First Known Use: 1865


INSECTICIDE Defined for Kids

insecticide

play
noun in·sec·ti·cide \in-ˈsek-tə-ˌsīd\

Definition of insecticide

  1. :  a chemical used to kill insects




Medical Dictionary

insecticide

play
noun in·sec·ti·cide \in-ˈsek-tə-ˌsīd\

Medical Definition of insecticide

  1. :  an agent that destroys insects

  2. in·sec·ti·cid·al \(ˌ)in-ˌsek-tə-ˈsīd-əl\play adjective





Seen and Heard

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

WORD OF THE DAY

February 10, 2016

to put in good humor

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez kittly-benders spindrift duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ