QUIZZES
QUIZ YOURSELF ON PARENTHESES AND BRACKETS APLENTY!
Set some time apart to test your bracket symbol knowledge, and see if you can keep your parentheses, squares, curlies, and angles all straight!
Question 1 of 7
Let’s start with some etymology: What are the origins of the typographical word “bracket”?
First appeared around 1750, and is related to the French word “braguette” for the name of codpiece armor.
First appeared in 1610, based on the French word “baguette” for the long loaf of bread.
First appeared in 1555, and is related to the French word “raquette” for a netted bat.
TAKE THE QUIZ TO FIND OUT OTHER WORDS FROM chelate
che·lat·a·ble, adjectiveWords nearby chelate
Chekhov, Anton, Chekhovian, Chekiang, chela, Chelan, chelate, chelating agent, chelation, cheli-, chelicera, chelicerate
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for chelate
British Dictionary definitions for chelate
chelate
/ (ˈkiːleɪt) /
noun
chem a coordination compound in which a metal atom or ion is bound to a ligand at two or more points on the ligand, so as to form a heterocyclic ring containing a metal atom
adjective
zoology of or possessing chelae
chem of or denoting a chelate
verb
(intr) chem to form a chelate
Word Origin for chelate
C20: from chela 1
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 chelate
chelate
[ kē′lāt′ ]
n.
A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions.
v.
To combine a metal ion with a chemical compound to form a ring.
To remove a heavy metal, such as lead or mercury, from the bloodstream by means of a chelate.
Other words from chelate
che′late′ adj.che•la′tion n.The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for chelate
chelate
[ kē′lāt′ ]
A chemical compound in the form of a ring that contains a metal ion attached by coordinate bonds to at least two nonmetal ions. Many commercial dyes as well as important biological substances, such as chlorophyll and the heme of hemoglobin, are chelates.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.