concomitant variable see covariate.
Sorry, "tetrahydrocannabinol-thc-delta-9-tetrahydrocannabinol" is not in the Dic...
simile n. see metaphor.
psychomotor agitation restless physical activity arising fr...
pepsinogen n. the precursor of pepsin, a proteolytic enzyme...
grand mean a numerical average (mean) of a group of average...