1. 1  any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order: the human species has 23 pairs, designated 1 to 22 in order of decreasing size and X and Y for the female and male sex chromosomes respectively.
data source name (DSN) A data source name (DSN) is a data structure that contains the information about a specific database that an Open Database Connectivity ( ODBC ) driver needs in order to connect to it.
NPN: No Purchase Necessary: NPN: Natural Product Number: NPN: National Performance Network (New Orleans, LA) NPN: Newport News (Virginia) NPN: Nonprotein Nitrogen: NPN: New Plan Network: NPN: National Prevention Network: NPN: National Petroleum News (magazine) NPN: National Producer Number (insurance) NPN: Negative-Positive-Negative (transistor) NPN: National Party of Nigeria: NPN