causing or fraught with or showing anxiety
instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity
a group of independent but interrelated elements comprising a unified whole
(physical chemistry) a sample of matter in which substances in different phases are in equilibrium
a complex of methods or rules governing behavior
an organized structure for arranging or classifying
a procedure or process for obtaining an objective
a group of physiologically or anatomically related organs or parts
