Definitions:
(of an animal or bird of prey) spring or swoop suddenly so as to catch prey

a sudden swoop or spring.

a bird's claw.

a fine resinous powder formerly used to prevent ink from spreading on unglazed paper or to prepare parchment to receive writing.

powdered charcoal or other fine powder dusted over a perforated pattern to transfer the design to the object beneath.

smooth down by rubbing with pounce or pumice.

transfer (a design) by the use of pounce.