{{short description|Modified letter of the Greek alphabet}} {{also|Latin lambda}} {{Infobox grapheme|name=Barred lambda|image=Latin letter Lambda with stroke.svg|imageclass=skin-invert-image|imagesize=200px|imagealt=Upper and lower case of Latin barred lambda|script=Latin script|typedesc=ic|phonemes={{ubl|{{IPAslink|tɬ}}}}|alphanumber=|number=|fam1=Λ λ|fam2= λ|usageperiod=|equivalents=|associates=|type=alphabet|letter= ƛ|unicode=U+A7DC, U+019B|language=Americanist phonetic notation}} {{specialChars}}
The '''barred lambda''' ( ƛ) ({{unichar|A7DC|LATIN CAPITAL LETTER LAMBDA WITH STROKE|html=}}, {{unichar|019b|LATIN SMALL LETTER LAMBDA WITH STROKE|html=}}), is a modified letter of the Greek alphabet, commonly encountered in North American linguistics. It is used by the Salishan and Wakashan languages in Canada.<ref>{{cite web |last1=Humchitt |first1=Robyn |last2=Jacquerye |first2=Denis |last3=King |first3=Kevin |date=2023-07-17 |title=L2/23-191: Proposal to Encode 3 Additional Latin Characters for Wakashan and Salishan Languages to the Unicode Standard |url=https://www.unicode.org/L2/L2023/23191-three-latin-additions.pdf}}</ref> It is also used in Americanist phonetic notation, where it is also known as '''running man''',<ref>[http://www.tulaliplushootseed.com/alphabet.htm] {{Webarchive|url=https://web.archive.org/web/20080703222834/http://www.tulaliplushootseed.com/alphabet.htm |date=2008-07-03 }} (strictly speaking, this refers to the glottalized version, {{IPAblink|t͡ɬʼ}})</ref> to transcribe {{IPAblink|t͡ɬ}}. In physics, it represents the reduced Compton wavelength, i.e. the Compton wavelength ''λ'' divided by 2{{pi}}. {{multiple image | width = upright | footer = Cased forms of the barred lambda. The capital was assigned to Unicode in 2024. | image1 = Unicode 0xA7DC.svg | class1 = skin-invert-image | alt1 = Capital letter barred lambda | image2 = Unicode 0x019B.svg | class2 = skin-invert-image | alt2 = Small letter barred lambda }} It was first used in a phonetics context in ''American Anthropologist'' in 1934: {{cquote|λ for [''dl''] has been used in Eskimo by Jenness ... ƛ for [''tł''] is an innovation formed from λ as ''ł'' from ''l''.<ref>{{cite journal | author=Herzog, George | author-link=George Herzog | author2=Newman, Stanley S. | author3=Sapir, Edward | author3-link=Edward Sapir | author4=Swadesh, Mary Haas | author4-link=Mary Haas | author5=Swadesh, Morris | author5-link=Morris Swadesh | author6=Voegelin, Charles F. | author6-link=Charles F. Voegelin |date=Oct–Dec 1934 | title=Some orthographic recommendations | journal=American Anthropologist | volume=36 | issue=4 | pages=629–631 | doi=10.1525/aa.1934.36.4.02a00300| doi-access=free }}</ref> }} It is also used for the affricate [t͡ɬ] in transcribing the Sahaptin language, e.g., iƛúpna ‘he jumped’, and it is commonly used for the same purpose in several languages of the Caucasus. In addition, its counterpart with a combining comma above right (U+0315), {{Ill|Barred lambda with comma|lt=ƛ̓|fr|ƛ̓}}, is used for many of the Salish languages, such as Klallam, for an ejective lateral affricate [t͡ɬʼ].
== Encodings == {{charmap|A7DC|019B | name1 = LATIN CAPITAL LETTER LAMBDA WITH STROKE | name2 = LATIN SMALL LETTER LAMBDA WITH STROKE }}
== References == {{reflist}}
{{Latin script|L | show diacritic = stroke | show pairs = no }}{{Latin-script-stub}}{{DEFAULTSORT:Lambda - barred}} Category:Latin-script letters Category:Phonetic transcription symbols