L1 (língua materna)
1. First language; the native language that a person acquires from birth or early childhood
For most native English speakers, English is their L1.
Para a maioria dos falantes nativos de inglês, o inglês é sua L1.
2. In linguistics and language learning, the primary or native language used as a reference point when learning additional languages
Students often rely on their L1 when learning a second language.
Os alunos frequentemente se baseiam em sua L1 ao aprender uma segunda língua.
3. In neurology, the first lumbar vertebra of the spine
The patient experienced pain at the L1 vertebra level.
O paciente apresentava dor ao nível da vértebra L1.
L1 is primarily used in educational, linguistic, and medical contexts. In Brazil, the term is especially prevalent in language education and applied linguistics discussions, where understanding the learner's L1 is considered crucial for effective teaching of foreign languages.
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