The Oils and Plants Aromatherapy Glossary gives definitions of Aromatherapy and Herbal Terms.

Here are the results for the letter i

Immuno-stimulant

Stimulates the immune system to fight infection

Insulin

1. A polypeptide hormone secreted by the islets of Langerhans and functioning in the regulation of the metabolism of carbohydrates and fats, especially the conversion of glucose to glycogen, which lowers the blood glucose level. 2. Any of various pharmaceutical preparations containing this hormone that are derived from the pancreas of certain animals or produced through genetic engineering and are used in the medical treatment and management of diabetes mellitus (type I).

Intercostal

Between the ribs

Islets of Langerhans

Irregular clusters of endocrine cells scattered throughout the tissue of the pancreas that secrete insulin and glucagon. Also called islands of Langerhans.

Isomers

Compounds that have the same molecular formula but different structures and hence different properties.