There are multiple definitions:

1. direct linear transformation(English)

   • Transform

2. deviation from linear trend(English)

   • PPF
   • Voice & speaking, Signal analysis
   • https://doi.org…8-981-13-8403-5

3. dose-limiting toxicity(English)

   • IL-6R, AE, EGFR, RP2D, EOC
   • Oncology, Pharmacology / pharmaceutics, Toxicology
   • https://doi.org…ogist.2017-0090
   • https://doi.org…3/annonc/mdv309

4. double-lumen [endobronchial] tube(English)

   • a traditional / conventional one-lung ventilation tool that needs to be positioned under the guidance of a fiberoptic bronchoscope or auscultation. Also as c-DLT
   • v-DLT, iSLN, POST, HFPPV, SLT, SIT, CPAP, PEEP
   • Anesthesiology/analgesia, Pulmonology, Surgery
   • https://doi.org…871-022-01819-x
   • https://doi.org…000000000036295
   • https://doi.org…pen-2022-068071

5. double-lung transplantation(English)

   • CSS, OPTN, OS, RFS
   • Pulmonology, Transplantation, Prognosis
   • https://doi.org…2659/AOT.941301