An engineer who works at an oilfield

Rattus sordidus (syn. Rattus conatus), a burrowing species that forms underground colonies, found in Australia. / Rattus tunneyi, found in a variety of habitats, found in north and eastern Austrlia

present participle of obstruct the field

Ulmus minor, an elm tree found mainly in low-lying forest along the main rivers of southern Europe.

plural of field elm

A trip, usually in a group and especially by students, to a place of special interest for education, research or exploration; a trip into the field.

(baseball) The part of a baseball field which is beyond the infield and to the left of a person standing on home plate and facing the pitcher.

The area of grass (within the boundary) on which a cricket match is played. / A cricket ground.

(American football) A playing field on which the game of American football is played. / (Association football) A playing field on which the game of Association football is played.

(mathematics) A field of plotted slopes of a differentiable function.