FELIX
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
Free Electron Laser for Infrared eXperiments
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Free-orbit Experiment with Laser Interferometry X-Rays
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
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Common questions
What does “FELIX” mean?
Free Electron Laser for Infrared eXperiments
Is “FELIX” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.
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