the.com/gamma

means The third letter of the Greek alphabet, borrowed heavily by science and math to name things from radiation (gamma rays) to statistical distributions to screen brightness curves.

from From Greek gamma (Γ, γ), which traces back through Phoenician gimel — meaning camel, and plausibly shaped after a camel's neck or a throwing stick — into the wider Semitic abjad. The Greeks adapted it as a letter representing a 'g' sound, and it later lent its form and position to the Roman letter C (and eventually G). Its modern scientific fame — gamma rays, gamma functions, gamma correction — comes simply from the old habit of naming the third item in a series, or the third kind of newly discovered thing, after the third Greek letter.