[f. CRAB sb.1 + YAWS.] The West Indian name of a kind of yaws or frambœsia attacking the soles of the feet and palms of the hands, forming ulcers with very hard edges.
1740. Hist. Jamaica, 313. That which is called Crab-Yaws is never removed.
1799. Med. Jrnl., II. 33. In every instance … of venereal taint in yaws, or crab yaws, I found it ineffectual, prior to the use of mercurials.
