. "The process whose specific outcome is the progression of the Harderian gland over time, from its formation to the mature structure. The Harderian gland is an anterior orbital structure usually associated with the nictitating membrane, and produces and secretes a variety of substances to the eye, depending upon the species." . . "Harderian gland development" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .