extension field

noun

1. Mathematics. a field that contains a given field as a subfield.

Example Sentences

Iowa State University Extension field agronomist Joel DeJong says the agricultural community believes this year’s influx of the painted lady butterfly, or thistle caterpillar, is the largest ever in Siouxland.

From Washington Times

“You add that to these low milk prices, you end up with a perfect storm,” said Dorothy Perkins a food and agriculture extension field specialist at the University of New Hampshire.

From Seattle Times

A.The tree is never completely drained, and only a small portion of available sap and sugar reserves is removed, said Michael Farrell, the director of the Uihlein Forest, Cornell University’s maple syrup research and extension field station in Lake Placid, N.Y.

From New York Times

The researchers’ hypothesis has merit, said Michael Farrell, the director of Cornell University’s sugar maple research and extension field station in Lake Placid, N.Y., though the data source is not ideal.

From New York Times

Mark Licht, extension field agronomist for central Iowa since 2011, moved to the Ames campus as part of new team.

From Washington Times