| Word | Description |
| ID Cardholder | Each employee who performs pest control for a licensee must have an identification card |
| Incadescent | Light source that glows because of its filament being heated to a high temperature. |
| Insecticidal Soap | is defined as any of the potassium fatty acid soaps used to control many plant pests. Insecticidal soap is typically sprayed on plants in the same manner as other insecticides. |
| Insulin | Insulin is a hormone produced by the beta cells of the pancreas which permits glucose from the blood to enter the body’s cells and helps the body use glucose for energy. Insulin controls the amount of glucose in the blood. People who are type 1 diabetic must use manufactured insulin, usually in an injectable form, to replace the natural insulin that is no longer produced by their pancreas. People with type 2 diabetes sometimes need to use insulin when their cells become resistant to the insulin that their pancreas makes naturally and oral medications are no longer working. |
| Intake Vent | Where a dryer draws air in |
| Integral light | Bulbs that combine a bulb, ballast and standard screw base in a single sealed assembly, which must be discarded when the bulb burns out. They can be installed in any standard screw-type fixture where incadescent bulbs are normally used. |
