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

penicillinase

play
noun pen·i·cil·lin·ase \-ˈsi-lə-ˌnās, -ˌnāz\

Definition of penicillinase



1940

First Known Use of penicillinase

1940


Medical Dictionary

penicillinase

play
noun pen·i·cil·lin·ase \-ˈsil-ə-ˌnās, -ˌnāz\

Medical Definition of penicillinase




Learn More about penicillinase


Seen and Heard

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

WORD OF THE DAY

February 5, 2016

bread traditionally eaten on Shabbat

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?

kittly-benders pince-nez 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