altitude

1. (geometry) The distance measured perpendicularly from a figure's vertex to the opposite side of the vertex.Examples: "The perpendicular height of a triangle is known as its altitude."countableuncountable

2. (astronomy) The angular distance of a heavenly body above our Earth's horizon.countableuncountable

3. (dated, in the plural) Elevation of spirits; heroics; haughty airs.Examples: "The man of law began to get into his altitudes."; "Is this deified passion , in its greatest altitudes , fitted to stand the day ?"countabledatedin-pluraluncountable

4. (commutative algebra, dated, of a ring) Krull dimension.countabledateduncountable

5. (commutative algebra, of an ideal) Height.countableuncountable