Dictionary.com

polymyxin

[ pol-ee-mik-sin ]
/ ˌpɒl iˈmɪk sɪn /
Save This Word!

noun Pharmacology.
any of various polypeptide antibiotics derived from Bacillus polymyxa.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

Origin of polymyxin

1945–50; <New Latin polymyx(a) specific epithet (<Greek poly-poly- + mýxa mucus, slime) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for polymyxin

polymyxin
/ (ˌpɒlɪˈmɪksɪn) /

noun
any of several polypeptide antibiotics active against Gram-negative bacteria, obtained from the soil bacterium Bacillus polymyxa

Word Origin for polymyxin

C20: from New Latin Bacillus polymyxa; see poly-, myxo-, -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK