21-letter words containing p, u, t, e, r, d
- student participation — the extent to which students participate or involve themselves in a class, course, etc
- third party procedure — impleader.
- third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
- whip-and-tongue graft — a graft prepared by cutting both the scion and the stock in a sloping direction and inserting a tongue in the scion into a slit in the stock.
- white-knuckle paddler — an inexpert and timid canoeist.
- xeroderma pigmentosum — a rare inherited disease characterized by sensitivity to ultraviolet light, exposure resulting in lesions and tumors of the skin and eyes.