How do you spell Diameter?
Correct spelling
diameter
Remember: DIA-METER measures through - one 'm', ends in -ter like thermometer
Why is diameter spelled this way?
From Greek diametros, measuring through. DIA (through) + METRON (measure). The diameter measures through the center — the longest straight line a circle can contain.
Common misspellings of diameter
diamaterdiammeterdiametre
Example
The telescope's lens has a diameter of 8 inches.