Trēm'ū-lōus, a.
a. [Lat. tremulus, from tremere, to tremble; Sp. tremulo, tremuloso, It. tremulo, tremolo, tremoloso.]
Sense 1. Affected with fear or timidity; trembling. [Rare.] “The tender, tremulous Christian.” Decay of Piety.
Sense 2. Shaking; shivering; quivering; as, a tremulous limb; a tremulous motion of the hand or the lips; the tremulous leaf of the poplar.