acridine
[ ak-ri-deen, -din ]
/ ˈæk rɪˌdin, -dɪn /
noun Chemistry.
a colorless, crystalline solid, C13H9N, usually obtained from the anthracine fraction of coal tar: used chiefly in the synthesis of dyes and drugs.
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Commas mark divisions in sentences. Periods end declarative sentences. Apostrophes show possession. Easy, right? Well, punctuation can get pretty tricky—fast. Think you got what it takes to be a punctuation expert? Take our quiz to prove it!
Question 1 of 10
Which of the options below is the best punctuation for the sentence? It__s your turn to pick the movie __ but your sister gets to pick the board game we _ re going to play.
Its your turn to pick the movie but your sister gets to pick the board game we’re going to play.
It’s your turn to pick the movie but your sister gets to pick the board game were going to play.
It’s your turn to pick the movie, but your sister gets to pick the board game we’re going to play.
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Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for acridine
acridine
/ (ˈækrɪˌdiːn) /
noun
a colourless crystalline solid used in the manufacture of dyes. Formula: C 13 H 9 N
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
Medical definitions for acridine
acridine
[ ăk′rĭ-dēn′ ]
n.
A coal tar derivative that has an irritating odor and is used in the manufacture of dyes and synthetics.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.