ARMES	Anisotropy-Resolved Multi-Dimensional Emission Spectroscopy
Asn/N	asparagine
C	-cysteine
CT	charge transfer
DHF	dihydrofolate
dTMP	deoxythymidine monophosphate
dUMP	deoxyuridine monophospate
EcTS	E. coli thymidylate synthase
EEM	emission-excitation matrices
E.P.	electrostatic potential
FdUMP	5- fluoro deoxyuridine monophospate
HH	horizontal–horizontal
His/H	histidine
hTS	human thymidylate synthase
HV	vertical–horizontal
KIE	kinetic isotop effect
K${}_m$	Michaelis–Menten constant
${}^1$L${}_a$	emitting excited state of tryptophan
mTHF	R-N${}^{5,10}$ methylenetetrahydrofolate
mTS	mouse thymidylate synthase
N4	N${}^4$-OH-dCMP
PARAFAC	Parallel Factor Analysis—a multi-way method originating from psychometrics
PMT	photomultiplier tube
pTSFS	Polarised Total Synchronous Fluorescence Spectra
QM	quantum mechanics
QY	quantum yield
TCSPC	Time-Correlated Single Photon Counting
Trp/W	tryptophan
TS	thymidylate synthase
Tyr	tyrosine
VH	vertical–horizontal
VV	vertical–vertical