[ jahy-roh-free-kwuh n-see ]
/ ˈdʒaɪ roʊˌfri kwən si /
noun, plural gy·ro·fre·quen·cies. Physics.
the frequency of rotation of an electron or other charged particle in a magnetic field, directly proportional to the charge of the particle and to the field strength and inversely proportional to the mass of the particle.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019