It is important to understand the difference between the IIN and NCPDP Processor ID Number (BIN) before applying for a Processor ID Number (BIN).
Sclero-: (Or scler-) A confusing prefix that can refer exclusively to hardness (from the Greek skleros meaning hard) but that can also refer to the sclera of the eye.
Sclereids are cells that have all kinds of funky shapes, including branching or star-shaped patterns. They can bundle together or appear singly in much of the tissue of the plant and are what makes up the shells of nuts or the outer layers of seeds.