(algebra, Galois theory) A subfield of a given field which contains all of the fixed points that are common to all of the automorphisms of some subgroup of the automorphism group of that given field.

plural of field-book

Alternative form of field book

Alternative spelling of field of honor

plural of field bindweed

A common and invasive Eurasian perennial weed, Convolvulus arvensis, which has become established worldwide.

A field covered in stubble

(quantum mechanics) A quantum operator-valued function of (any point in) space.

(linear algebra) A scalar field.

(geology) A flat expanse of solidified lava flow