quae·si·tum \kwēˈsīd.əm\noun (pluralquaesi·ta \-d.ə\) Etymology: Latin, neuter of quaesitus, past participle of quaerere to seek, ask 1.: something sought for : end, objective < our intuition that one of the ideas … is, at last, our quaesitum — William James > 2.: the true or actual value of a quantity as distinguished from one determined by empirical procedures (as of measurement) — compare error 5a