Heaviside layer

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noun

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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.

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Origin of Heaviside layer

First recorded in 1910–15; named after O. Heaviside

Words nearby Heaviside layer

heaves, heave to, heavier-than-air, heavily, Heaviside, Heaviside layer, Heaviside unit function, heavy, heavy artillery, heavy-bearded, heavy bomber

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for Heaviside layer

Just who is crazy enough to go swimming when the pond across the street has a layer of ice across the top?
Diving Into 2015 With Polar Bear Plunge Extremists|James Joiner|January 1, 2015|DAILY BEAST
When summer comes, adult beetles attack and larva feed in the cambium layer, girdling the trees and sealing their doom.
What It Takes to Kill a Grizzly Bear|Doug Peacock|November 23, 2014|DAILY BEAST
After maybe an hour, the firefighters had cut through the last layer of a 4- by 8-foot area.
Rescue at One World Trade Center|Michael Daly|November 13, 2014|DAILY BEAST
These words take on a dark layer of irony given the charges facing her.
Colombian Beauty Queen Arrested for Running Child Prostitution Ring|Jason Batansky|October 17, 2014|DAILY BEAST

With each successive layer of networks, the U.S. became more potent.
Electricity Superhighway||October 16, 2014|DAILY BEAST
It separates into three layers upon standing—a brown deposit, a clear fluid, and a frothy layer.
A Manual of Clinical Diagnosis|James Campbell Todd
The upper surfaces of the boilers were covered with a layer of ashes for the same purpose.
Life of Richard Trevithick, Volume II (of 2)|Francis Trevithick
By the repetition of this process, a layer of several feet in thickness, of an excellent soil, is accumulated on the surface.
Elements of Agricultural Chemistry|Thomas Anderson
He was shot by a man of the 32d, and his body formed the lowermost layer of a causeway of corpses that soon choked the ditch.
The Red Year|Louis Tracy
Laura drew out the third drawerjust glancing at the top layer of papersand then the fourth and last.
The Girls of Central High on the Stage|Gertrude W. Morrison

British Dictionary definitions for Heaviside layer

Heaviside layer

noun

the E region of the ionosphereSee E region

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

Scientific definitions for Heaviside layer

Heaviside layer

[ hĕv′ē-sīd′ ]

See E region.

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Heaviside layer

noun

QUIZZES

QUIZ YOURSELF ON PARENTHESES AND BRACKETS APLENTY!

Origin of Heaviside layer

Words nearby Heaviside layer

Example sentences from the Web for Heaviside layer

British Dictionary definitions for Heaviside layer

noun

Scientific definitions for Heaviside layer