dermatoglyphics

noun

1. (used with a plural verb) the patterns of ridges on the inner surface of the hands and feet.
2. (used with a singular verb) the science dealing with the study of these patterns.

pl n

1. the lines forming a skin pattern, esp on the palms of the hands and soles of the feet
2. (functioning as singular) the study of such skin patterns

n.

1. The patterns of lines and ridges on the skin of the fingertips, palms, and soles, used to establish the identity of individuals or as an indicator of chromosomal abnormalities.
2. The study of such patterns.