How to spell DIANOTIC correctly?

If you meant "diagnostic" but mistyped it as "dianotic", here are some suggestions. The word "diagnostic" is commonly used to refer to processes or tests used to determine the cause or nature of an illness or problem. You could also consider "analysis" or "examination" as alternatives.

• diabetic My grandmother is diabetic and has to carefully monitor her blood sugar levels.
• diatonic The diatonic scale is the most common type of scale in music.

Nitification

• nitrification
• notification
• notifications