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/nil/ 1. New Implementation of Lisp. A language intended to be the successor of MacLisp. A large Lisp, implemented mostly in VAX assembly language. A forerunner of Common LISP.

["NIL: A Perspective", Jon L. White, MACSYMA Users' Conf Proc, 1979].

2. Network Implementation Language. Strom & Yemini, TJWRC, IBM. Implementation of complex networking protocols in a modular fashion.

["NIL: An Integrated Language and System for Distributed Programming", R. Strom et al, SIGPLAN Notices 18(6):73-82 (June 1983)].

3. Empty list or False. In Lisp, the empty list (or "nil list") is used to represent the Boolean value False. This is possible because Lisp is not typed. True is represented by the special atom "t".

4. Spoken in reply to a question, particularly one asked using the "-P" convention it means "No". Most hackers assume this derives simply from LISP, but NIL meaning "no" was well-established among radio hams decades before LISP existed. The historical connection between early hackerdom and the ham radio world was strong enough that this may have been an influence.
References in periodicals archive ?
During the lecture, Nils stressed that an actor should be an exhibitionist.
I've hundreds to choose from may take some to really special Nils Lofgren His solo albums have always been highly acclaimed, such as his eponymously titled debut Nils Lofgren in 1975, I Came To Dance in 1977, and Damaged Goods in 1995.
And after spending much of 2017 in hibernation in preparation for a busy period ahead, Nils will commence 2018 with his first live performances since 2015, and will embark on the beginning of a long worldwide tour entitled All Melody.
Nils believes that advances in X-ray inspection of poultry are not just driven by retailer and consumer demands but also by automation itself.
During the ceremony, Sir Nils paraded along the zoo's penguin walk, while inspecting the soldiers of the guard.
In 1972, one of the zoo's king penguins was named Nils Olav after Norwegian Major Nils Egelien, who arranged his adoption, and Norway's then King Olav.
Alongside Nils as lead artist, two other Walesbased artists, Fern Thomas and Imogen Higgins, have been consulting with staff, families, young people and children about ideas and researching and investigating the history and archaeology collections, the paper, sound and film archives at St Fagans to consider various themes.
Nearest-the-pin side contests on holes 12 and 16 were won by Jonathan Hassett and Nils Berge, respectively.
Following this disposal, the company no longer has any interest in the Nils Passaj property.
There were 19 NILs, six recurrent parents and five susceptible check cultivars used which were obtained from the Main Rice Research Station, Anand Agricultural University, Nawagam, Gujarat, India.
The team at Oakville, CA-based Saddleback Cellars has revealed that owner Nils Venge will be in attendance at the 25th anniversary events to guide guests on the latest and finest zinfandel wines in the industry.
Nils P Knudsen, Head of Global Cargo Services, comments: "Dirk's long-standing experience in the industry and his knowledge of the German and European air cargo business will be a great asset for Swissport to sustainably grow this market further and improve our position in the region."