Meanings
noun
- aeronauticsA zero-padded 12-bit binary code, a modified Gray code, used to transmit uncorrected barometric altitude between an encoding altimeter or analog air data computer and a digital transponder.
Origin
Named after Ronald Lionel Gillham, a signals officer.
Full word history & related roots →Cite this entry
APA
Gillham code. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/Gillham%20code
MLA
“Gillham code.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Gillham%20code. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “Gillham code,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/Gillham%20code.
Source: Gillham code on Wiktionary, CC BY-SA 4.0.