pacinian

from The Century Dictionary.

• Pertaining to the anatomist Pacini (1812-83), or described by him, as an anatomical structure. Also Paccinian.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Anat.) Of, pertaining to, or discovered by, Filippo Pacini (1812-1883), an Italian physician of the 19th century.
• adjective small oval bodies terminating some of the minute branches of the sensory nerves in the skin of the fingers, mesentery, integument and other parts of the body; the corpuscula lamellosa; called also Vater's corpuscles and Vater-Pacini corpuscles. They are sensitive to pressure, and supposed to be tactile organs.