† ˈmesographObs. [ad.Gr. µεσόγραϕον mean proportional, neut. of µεσόγραϕος, f. µέσο-ς middle + -γραϕος written.] In quot. taken = mesolabe. 1579–80North Plutarch, Marcellus (1595) 335 Certain instruments, called Mesolabes or Mesographes, which serue to find these meane lines proportionall.