Definition, Meaning & Synonyms

upsilon

noun

/ˈʌp.sɪ.lɒn/

Definition

Upsilon is the 20th letter of the Greek alphabet, traditionally represented by the symbol Υ (uppercase) and υ (lowercase).

Examples

The Greek letter upsilon is used frequently in physics equations.
The star Upsilon Pegasi is known for its binary systems.
Mathematicians might use the upsilon symbol to represent certain types of functions.

Meaning

In various scientific and mathematical contexts, upsilon often denotes specific variables or constants. In astronomy, it can also refer to a particular star designation.