LX Views 9 meanings found In medicine, LX abbreviates procedures like lumpectomy or denotes the lower extremity, while in other contexts it may refer to the Chinese writer Lu Xun or to long‑wavelength concepts in computing. Medical Lumpectomy Lower eXtremity Miscellaneous Low Index Lu Xun Less Xtras Governmental Linear X Academic & Science Sixty ( Roman Numerals) Computing Long Wavelength Business Lighting Technician