low performers
low permeability
low phosphorus
low phosphorus concentration
low physical activity
low plasma concentrations
low plasma levels
low platelet count
low polarity
low polydispersity
low polymorphism
low population density

low porosity
low potential
low power
low power consumption
low precision
low predictive value
low pressure
low pressure system
low prevalence
low price
low priority
low probability
low production

low productivity
low profile
low propensity
low proportion
low protein
low protein concentrations
low protein diet
low protein levels
low quality
low quantities
low rainfall
low range
low rate

low ratio
low reactivity
low recruitment
low rectal cancer
low recurrence rate
low redshift
low relative humidity
low reliability
low reproducibility
low resistance
low resistivity
low resolution
low resource settings

low response
low response rate
low returns
low risk
low risk patients
low salinity