langue; language as a system
Technical linguistics term, especially in the Saussurean contrast ラング and パロール. It means the shared language system, not simply any everyday use of 'language'.
from French langue
See also: パロール
Saussure distinguished langue from parole.
ラングは、個々の発話を支える言語の体系を指す。
Langue refers to the language system that underlies individual utterances.
Rare katakana transcription for 'lung'. In ordinary Japanese, the organ is normally called 肺; ラング is more likely in transliteration, labels, or special contexts.
解剖の表では、肺の英語名として「ラング」とカタカナで示されていた。
In the anatomy chart, the English name for the lung was shown in katakana as 'rangu'.
In Saussurean linguistics ラング is the shared underlying language system, while パロール is the individual act of speech that contrasts with it.
The linguistics sense is from French langue. The 'lung' sense is a katakana transcription, but no language of origin for that sense is specified.