AD	Alzheimer’s Disease
AMP	Adenosine Monophosphate
AST	Astrocytoma
cIM	Circular Ion Mobility
CCS	Collision Cross-Section
CL	Cardiolipin
CRC	Colorectal Cancer
CV	Compensation Voltage
DESI-MSI	Description Electrospray/Ionization–Mass Spectrometry Imaging
DTIMS	Drift Tube Ion Mobility Spectrometry
DHB	2,5-dihydroxybenzoic acid
FAIMS	High-Field Asymmetric Ion Mobility Spectrometry
GBM	Glioblastoma
GD1	Ganglioside D1
GPC	Glycerophosphocholine
HPLC	High-Performance Liquid Chromatography
HDI	High-Definition Imaging
IM	Ion Mobility
IM-MSI	Ion Mobility–Mass Spectrometry Imaging
IM-MS	Ion Mobility–Mass Spectrometry
IMS-MSI	Ion Mobility Spectrometry–Mass Spectrometry Imaging
IR	Infrared Spectroscopy
IR-MALDESI-MSI	Infrared Matrix-Assisted Laser Desorption Electrospray Ionization–Mass Spectrometry Imaging
IR-MALDI	Infrared Matrix-Assisted Laser Desorption/Ionization
KO	Knockout
LC-MS	Liquid Chromatography–Mass Spectrometry
LA-ICP-MSI	Laser Ablation Inductively Coupled Plasma–Mass Spectrometry Imaging
LAESI	Laser Ablation Electrospray Ionization
LAESI-MSI	Laser Ablation Electrospray Ionization–Mass Spectrometry Imaging
LESA-FAIMS	Liquid Extraction Surface Analysis–High-Field Asymmetric Ion Mobility Spectrometry
LESA-MSI	Liquid Extraction Surface Analysis–Mass Spectrometry Imaging
LPE	Lysophosphatidylethanolamine
LPS	Lysophosphatidylserine
MSI	Mass Spectrometry Imaging
MS/MS	Tandem Mass Spectrometry
MALDI-MSI	Matrix-Assisted Laser Desorption/Ionization–MSI (mass spectrometry imaging)
MALDI-MSI-IMS	Matrix-Assisted Laser Desorption/Ionization–Mass Spectrometry Imaging–Ion Mobility Spectrometry
MCTS	Multicellular Tumor Spheroid
MRM	Multiple Reaction Monitoring
NAA	N-Acetylaspartate
NanoDESI-IM-MS	Nanospray Desorption Electrospray Ionization–Ion Mobility–Mass Spectrometry
NMDA	N-Methyl-D-Aspartate
NMR	Nuclear Magnetic Resonance
OTCD	On-tissue Chemical Derivatization
PA	Phosphatidic Acid
PC	Phosphatidylcholine
PE	Phosphatidylethanolamine
PS	phosphatidylserine
PANC-1	Human Pancreatic Cancer
PSC	Pancreatic Stellate Cells
QMSI	Quantitative-MSI
RF	Radial Radiofrequency
SIMS	Secondary Ion Mass Spectrometry
SLOS	Smith–Lemli–Opitz Syndrome
SM	Sphingomyelin
SRIG	Stacked Ring Ion Guide
SRM	Selected Reaction Monitoring
TBI	Traumatic brain injury
TG	Triacylglycerol
TIMS	Trapped-Ion Mobility Spectrometry
TOF-SIMS	Time-of-Flight Secondary Ion Mass Spectrometry
TWIMS	Traveling-Wave Ion Mobility Spectrometry
UV	Ultraviolet Spectroscopy