Definition - What does Axil mean?
On marijuana plants, the axil is the angle between the upper surface of the leaf stalk, also known as the petiole, and the stem from which it arises. Consequently, an axillary bud is a bud borne in the axil of the leaf. Inflorescences, the complete flower head of a plant including its stems, stalks, bracts, and flowers, is found in the axils of the upper leaves of the cannabis plant.
Hydrolife explains Axil
Generally, the axil is the place on the plant where the leaves meet the main stem. In marijuana plants, these have special cells that will grow into either side branches or into flowers. The little stalk that holds and supports the main blade of the leaf or leaflets is known as the petiole. It also joins the root system at the soil level.
The ‘apical bud’ or ‘terminal bud’ is located at the top of the plant. These are typically the biggest and the most potent buds in the cannabis plants and are often referred to as kolas. The ‘floral bud’ is an axillary bud that has gotten the chemical signals to begin flowering. Consequently, these are the precious parts of the plant that are harvested for their recreational and medical effects.