You searched for: “variations
variation (s) (noun), variations (pl)
(Phobia Variations Defined and Explained)
Word Entries at Get Words: “variations
Partial changes in the form, position, state, or qualities of something; modifications; alternations; mutations; diversities; deviations.

". . . it was later realized that the phenomenon of changing air pressure had accounted for the variations in temperature readings in the open thermoscopes."

This entry is located in the following unit: Thermometer and Temperature Scales (page 1)