Abbe Number: Denotes the degree of refraction of light of different wavelengths to different extents, given by a transparent material, such as glass. The lower the abbe number, the greater the dispersion of colors.

 

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Abbe Number: Denotes the degree of refraction of light of different wavelengths to different extents, given by a transparent material, such as glass. The lower the abbe number, the greater the dispersion . . . View Full Definition

Number Of Days Sales Invested In Working Capital: An alternative measure of the amount of working capital used in generating the sales of a period: computed by dividing 365 days by the working capital turnover.

Number Pooling: Increasingly popular tactic for conserving phone numbers. Numbers are returned by all carriers to a central authority, which puts them in a pool, from which carriers receive numbers in lots . . . View Full Definition

Ol Number One: A fastball. The term comes from the usual signal that a catcher gives to a pitcher for a fastball, which is pointing the number one down.

Number Of Days Sales In Receivables: A measure of the average number of days it takes to collect a credit sale: computed by dividing 365 days by the accounts receivable turnover.

Number Portability: A term used to describe the capability of individuals, businesses and organizations to retain their existing telephone number(s) –– and the same quality of service –– when switching to a new . . . View Full Definition

Number Of Days Of Inventory On Hand: An alternative measure of how well inventory is being managed: computed by dividing 365 days by the inventory turnover ratio.

National Emergency Numbering Association (NENA): NENA's mission is to foster the technological advancement, availability and implementation of a universal emergency telephone number system.

North American Numbering Council (NANC): The FCC advisory group formerly responsible for administering the North American Numbering Plan that oversees assignment of area codes, central office codes and other numbering issues in the . . . View Full Definition

Number Assignment Module (NAM): The NAM is the electronic memory in the cellular phone that stores the telephone number and an electronic serial number. Phones with dual- or multi-NAM features offer users the option of reg . . . View Full Definition