magneto-

1.
a combining form representing magnetic, or magnetism, in compound words:
magnetochemistry.
Also, especially before a vowel, magnet-.
British Dictionary definitions for magneto-

magneto-

combining form
1.
indicating magnetism or magnetic properties: magnetosphere
Word Origin and History for magneto-

word-forming element meaning "magnetic, magnetism," from Greek magneto-, combining form of magnes (see magnet).