CTCC	Chlortetracycline hydrochloride
OTCC	Oxytetracycline hydrochloride
AVF	Aliivibrio fischeri
CA	Concentration addition
SCA	Segmented concentration addition
IA	Independent action
CRC	Concentration-response curve
J/U/S-CRC	J/U/S-shaped concentration-response curve
PBZ	Predictive blind zone
CTC	Co-toxicity coefficient
CI	Confidence interval
CTCICI	Co-toxicity coefficient integrated with confidence interval method
EquRay	Direct equipartition ray design
Pi	Component concentration proportion
BP	Biphasic model
BPL	J-CRC left segment model
BPR	J-CRC right segment model
f	Function
R 2	Coefficient of determination
RMSE	Root-mean-square error
ECm	Maximum stimulatory effect concentration
E m	Maximum stimulatory effect
CP	Cross point between mixture observed J-CRC and CA predicted J-CRC
ECCP	Concentration at the cross point
E CP	Effect at the cross point
ECx	x%-effect concentration
EC−x	−x%-effect concentration
EC−xR	−x%-effect concentration on the right of the lowest point of J-CRC
EC−xL	−x%-effect concentration on the left of the lowest point of J-CRC
pECx	Negative logarithm of the x%-effect concentration