[Lonesome in Massachussets]

meteor means - more or less - "things that fall from the sky", as in meteorology. Meteorologist call rain, hail, snow, etc collectively "Hydrometeors". So he's fine on strictly "Meteorological" grounds.

[Looking for Diogenes]

Quite right, meteors are things that fall from the sky. Fish, rocks, chunks of ice, etc, are all included. Nonetheless, it is a confusing choice of terms because in modern usage it implies an extraterrestrial origin, which the researcher has discounted.