gamma

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun the 3rd letter of the Greek alphabet
noun a unit of magnetic field strength equal to one-hundred-thousandth of an oersted
noun Portuguese navigator who led an expedition around the Cape of Good Hope in 1497; he sighted and named Natal on Christmas Day before crossing the Indian Ocean (1469-1524)

Learned borrowing from Ancient Greek γάμμα (gámma). Doublet of gimel.

Gamma ray bombs were as useless. — The Ultimate Weapon, John W., Jr. (John Wood) Campbell
Procyon Alpha, Beta and Gamma hung at full, rings gently tilted. — The Colors of Space, Marion Zimmer Bradley
He is the gentleman who did such a splendid job for us on Assha--Gamma Norma III. — Lone Star Planet, H. Beam Piper

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