[ uh-lok-thuhn, -thon ]
/ əˈlɒk θən, -θɒn /
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a geological formation not formed in the region where found and moved to its present location by tectonic forces.Compare autochthon (def. 3).
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
Origin of allochthon
First recorded in 1940–45; back formation from allochthonous
Words nearby allochthon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021