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gross zero

American  
[grohs zeer-oh] / ˈgroʊs ˈzɪər oʊ /

noun

  1. the theoretical elimination of all greenhouse gas emissions and especially carbon emissions (sometimes used attributively).

Etymology

Origin of gross zero

First recorded in 2015–20

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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