Pertaining to the period of Norman rule of England, 1066–1154. / Pertaining to Normans in England after the Norman Conquest. / Relating to their language.

A Norman who settled in England after the Norman Conquest, or a descendant of one.

The Old French dialect spoken in England by the ruling classes after the Norman Conquest, or the form of this dialect used in English law until the 17th century.

(religion) A tutelary angel watching over a particular person in monotheistic contexts. / (figuratively) A person who watches over another.

Emotional turmoil; painful sadness. / A feeling of acute but vague anxiety or apprehension often accompanied by depression, especially philosophical anxiety.

(informal, intransitive) To suffer angst; to fret.

(computing theory) A notional ability always to choose the most favorable option, in constant time.

(physics) A unit of length equal to 10⁻¹⁰ meters (that is, one ten-billionth of a meter), approximately the size of an atom, and denoted by the symbol Å, used especially to measure the wavelength of electromagnetic radiation or distances between atoms.

(botany) Any plant of the clade Angiosperms, characterized by having ovules enclosed in an ovary; a flowering plant.

(geometry) The three-dimensional analog of an angle, equivalent to the area of that portion of the surface of a unit sphere that it subtends.