Impact. The striking against; the striking force of one body against another.

Immersed. Placed under water below the surface.

Impinge. To strike against; usually applied where air strikes a plane or a surface at an angle.

Imitation. Similarity; the same in appearance.

Incompatible. Without harmony; incapable of existing together.

Incurved. Applied to a surface formation where there is a depression, or hollow.

Inequalities. Not smooth, or regular; uneven.

Infinitely, Boundless; in great number, or quality; without measure.

Initial. The first; that which is at the beginning.

Indestructibility. Not capable of being injured or destroyed.