trigonometry : Idioms & Phrases

• that branch of trigonometry which treats of the relations and properties of the trigonometrical functions.

Webster 1913

• the branch of trigonometry in which its principles are applied to plane triangles.

Webster 1913

• those branches of trigonometry in which its principles are applied to plane triangles and spherical triangles respectively.

Webster 1913

• noun (mathematics) the trigonometry of spherical triangles
  

WordNet

• . See Trigonometry.

Webster 1913