Dictionary.com
Thesaurus.com

green lung

British  

noun

  1. an area of parkland within a town or city, considered in terms of the healthier environment it provides

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The inaugural $4 million event in India attracted a host of Ryder Cup players and star names to the historic Lodhi course at Delhi Golf Club, a green lung in the heart of the city studded with the ruins of Mughal-era tombs.

From Barron's

Their aim was to create what they called a small "green lung" in the centre of a busy city.

From BBC

This overexploitation of Brazil's green lung destroys the habitats of many species of flora and fauna and also accelerates climate change.

From Science Daily

Government buildings, private offices and homes have sprung up at pace, cutting deep into the forest known as the “green lung of Kochi.”

From Seattle Times

“A new green lung,” the City Hall boasted on its website.

From New York Times