The term has loosely been used to describe either a relatively unstable and transient chemical species or a relatively stable but reactive species. See also inert.

The term "labile" was found in the following pages:

Quantitative determination of labile iron complexes by hydrophilic interaction liquid chromatography – electrospray MS/inductively coupled plasma mass spectrometry | EVISA's News
Books and Special Issues on Elemental Speciation (published since 2006) | EVISA's News
Books and Special Issues on Elemental Speciation (published since 2016) | EVISA's News
Instrument database: Shimadzu Europe - Optic 3 - Cooled PTV-Injector
Arsenic species in edible mushrooms from central Europe | EVISA's News
Instrument database: Varian Inc. - 500-MS LC Ion Trap
Instrument database: Waters Corporation - 717plus Autosampler
Link database: Al(III) speciation in biological materials
Instrument database: Dionex Corporation - WPS-3000 Well Plate Sampler
Instrument database: Bruker Daltonics - EVOQ™ Triple Quadrupole Mass Spectrometer
2009 ASLO Aquatic Sciences Meeting: Aquatic biogeochemistry as only skin deep | EVISA's Agenda of Events
Instrument database: Thermo Scientific - Orbitrap Elite™ Hybrid Ion Trap-Orbitrap Mass Spectrometer
Arsenic species in rice: Origin, uptake and geographical variation | EVISA's News
Application of Mass Spectrometry to Speciation Analysis in the Life Sciences | EVISA's Agenda of Events
Books on Elemental Speciation | EVISA's News
Instrument database: Agilent Technologies Inc. - 6560 Ion Mobility Q-TOF LC/MS
Instrument database: Waters Corporation - MALDI micro MX
Identification and quantification of potential metabolites of Gd-based contrast agents | EVISA's News
Instrument database: Bruker Daltonics - ultraflex II & ultraflex II TOF/TOF
Instrument database: Varian Inc. (Part A) - 500-MS LC Ion Trap