D defs.my
Entry 1 sense Webster, 1913

Libratory

/(lī"brȧ*tō̇*ry̆)/ · Li·bra·to·ry · IPA
01 a. Balancing; moving like a balance, as it tends to an equipoise or level.
  1. 1.
    Balancing; moving like a balance, as it tends to an equipoise or level.