AB-PLA	Antibacterial PLA
ABS	Acrylonitrile butadiene styrene
AM	Additive manufacturing
ANOVA	Analysis of variance
AR	Anisotropy ratio
BO	Built orientation
Br-PLA	Brass pigment-modified PLA
BRE	Built rate efficiency
Bz-PLA	Bronze pigment-modified PLA
CB-PLA	Carbon black-filled PLA
CF-PLA	Carbon fiber reinforced PLA
CK-PLA	Cork-filled PLA
CL-PLA	Stone-/mineral-filled PLA
Cu-PLA	Copper pigment-modified PLA
CV	Coefficient of variation
DA	Dimensional accuracy
ET	Extrusion temperature
GF-PLA	Glass fiber reinforced PLA
Gr-PLA	Graphene-modified PLA
HF-PLA	Hemp-biofilled recycled PLA (rPLA)
LT	Layer thickness
LW-PLA	Lightweight (foamed) PLA
MEX	Material extrusion
MFII	Mass flow irregularity index
MT	Manufacturing time
PETG	Polyethylene terephthalate glycol
PLA	Polylactic acid
PPP	Printing process parameter
PS	Printing speed
RA	Raster angle
RD	Relative density
RDE	Relative dimensional error
rPLA	Recycled PLA
SD	Standard deviation
SP-PLA	Stainless steel powder-filled PLA
VBSI	Volumetric build stability index
WF-PLA	Wood-filled PLA
2D	Two-dimensional
3D	Three-dimensional
b1, b2	In-plane specimen widths
h	Specimen height
L0	Nominal cube edge length
Li	Measured mean dimension along axis i
mm	Measured specimen mass
Rm	Mass deposition rate
t	Print time
V0	Nominal/theoretical specimen volume
Vm	Measured specimen volume
ΔV	Volumetric deviation
δi	Relative dimensional deviation
δb1	Relative dimensional deviation along edge b1
δb2	Relative dimensional deviation along edge b2
δh	Relative dimensional deviation along build orientation
ρbulk	Bulk/specimen density
ρmat	Nominal material/filament density
σp	Standard deviation of bulk density
σm	Standard deviation of specimen mass
σv	Standard deviation of specimen volume
μp	Mean bulk density
μm	Mean measured specimen mass
μv	Mean specimen volume
ϕ	Porosity