Operose \Op"er*ose`\ a. [L. operosus, fr. opera pains, labor,
opus, operis, work, labor.]
Wrought with labor; requiring labor; hence, tedious;
wearisome. "Operose proceeding." --Burke. "A very operose
calculation." --De Quincey. -- {Op"er*ose`ly}, adv. --
{Op"er*ose`ness}, n.
[1913 Webster]