nitrogen-fixing

[ nahy-truh-juhn-fik-sing ]

adjective

1. involved in or aiding the process of nitrogen fixation.

nitrogen fixing

1. The conversion of atmospheric nitrogen (which plants cannot absorb) into forms of nitrogen that plants can absorb. Bacteria in the topsoil carry out the conversion.

Word History and Origins

Origin of nitrogen-fixing¹

First recorded in 1895–1900

Example Sentences

The soil must be well ventilated to supply nitrogen for the nitrogen-fixing germs and oxygen for the nitrifying germs.

From Project Gutenberg

To do their work well the nitrogen-fixing germs and the nitrifying germs require certain conditions.

From Project Gutenberg

This they do not of their own power but through the aid of very minute plants called bacteria or nitrogen-fixing germs.

From Project Gutenberg

Such plants as are hosts for the nitrogen-fixing bacteria are planted early in the season.

From Project Gutenberg

Nitrogen-fixing bacteria also add to the stores of nitrogen compounds.

From Project Gutenberg