API	Active Pharmaceutical Ingredient
APSD	Aerodynamic Particle Size Distribution
BSL	Baseline
BW	Body Weight
CAD	Charged Aerosol Detector
CF	Aerosol Concentration of the Filter
CL	Concentration of TP in the Lungs
D	Exposure Duration
DDU	Delivered Dose Uniformity
DF	Deposition Fraction
DSPE-PEG2000	1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethylene glycol)-2000]
DUSA	Dose Uniformity Sample Apparatus
EtOH	Ethanol
FPD	Find Particle Dose
FPF	Fine Particle Fraction
GSD	Geometric Standard Deviation
HFAHPLC	HydrofluoroalkaneHigher-Performance Liquid Chromatography
IPA	Isopropyl Alcohol
JL	Jet Length
LW	Lung Weight
MMADMDI	Median Mass Aerodynamic DiameterMetered-Dose Inhaler
MS	Mass spectrometry
mSAP	Mean Systemic Arterial Blood Pressure
MSPE-PEG2000	2-stearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethylene glycol)-2000]
NGI	Next-Generation Impactor
OD	Orifice Diameter
PAH	Pulmonary Arterial Hypertension
PEG	Polyethylene Glycol
PET	Polyethylene Terephthalate
PG	Propylene Glycol
PK	Pharmacokinetics
PVC	Polyvinyl Chloride
RMV	Respiratory Minute Volume
RVPP	Right Ventricular Pulse Pressure
TCC	Total Can Content
TE	Treprostinil Ethyl
TI	Treprostinil Isopropyl
TP	Treprostinil Palmitil
TPeq	Treprostinil Palmitil Equivalents
TPIA	Treprostinil Palmitil Inhalation Aerosol
TRE	Treprostinil