What does NISH stand for?

National Industries for the Severely Handicapped (EA)

National Information Sources on the Handicapped - Clearinghouse on the Handicapped - Database

National Institute of Senior Housing (EA)

Naval Intelligence Support Headquarters (CCCA)

Nonisotopic In Situ Hybridization - Analytical biochemistry

Nishimura - Botanist in plant scientific name (HUH)