Most veterinary eye specialists believe the actual cause of tear staining is excess tearing. When the face hair is wet from excess tearing it is the breeding ground for bacteria and yeast. One of the most common yeast infections is Ptyrosporin or Red Yeast which causes a deep reddish-brown stain.
Definition of assignment. 1  1 : the act of assigning something the assignment of a task. 2  2a : a position, post, or office to which one is assigned Her assignment was to the embassy in India.b : a specified task or amount of work assigned or undertaken as if assigned by authority a homework assignment.
3. allocation - (computer science) the assignment of particular areas of a magnetic disk to particular data or instructions. storage allocation. assigning, assignment-the act of distributing something to designated places or persons; the first task is the assignment of an address to each datum.n a general sense, distribution of limited resources among competing requirements for employment. Specific allocations (e.g., air sorties, nuclear weapons, forces, and transportation) are described as allocation of air sorties, nuclear weapons, etc.