13-Letter Words Containing: _,A,A,C,P,T

• extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds

• The fused head and thorax of spiders and crustaceans

• An evolutionary trend in which the neural and sense organs become centralized at one end (the head) of an animal.

• The redistribution of blood flow from the base of the lung towards the upper lobe vessels as a consequence of pulmonary venous hypertension, usually described on a chest radiograph.

• any four copies; any of four things that correspond to one another exactly

• having four units or components

• reproduce fourfold

• To change how a corporation is structured.

• a licensed practitioner of psychoanalysis

• relating to or occurring or used in typography

• equipment that enables a sophisticated separation, e.g. gas chromatographic or liquid chromatographic separation.