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

phthalic anhydride

noun

Definition of phthalic anhydride

  1. :  a crystalline cyclic acid anhydride C8H4O3 used especially in making alkyd resins



1855

First Known Use of phthalic anhydride

1855


Medical Dictionary

phthalic anhydride

noun

Medical Definition of phthalic anhydride

  1. :  a crystalline cyclic acid anhydride C8H4O3 that is used especially in making alkyd resins and is a structural part of thalidomide




Learn More about phthalic anhydride


Seen and Heard

What made you want to look up phthalic anhydride? 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 duvet kittly-benders spindrift
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