12-Letter Words with A,D,N,P,Y

• a B vitamin that is essential for metabolism of amino acids and starch

• chronic and abnormal anxiety about imaginary symptoms and ailments

• Of, relating to, or caused by the energy or momentum of light or other electromagnetic radiations

• Of, or relating to photodynamics

• surgical removal of the vermiform appendix

• To remove or displace a hyphen from.

• Lacking a hyphen.

• Of people, belonging to a single ethnicity or nationality: names for multi-ethnic/multi-nationality groups generally require a hyphen to connect the names being combined.

• any plant of the genus Pachysandra; low-growing evergreen herbs or subshrubs having dentate leaves and used as ground cover

• a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty

• an airplane that can land on or take off from water

• a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds

• glide on the water in a hydroplane