27-letter words containing h, a, p, e, n, t
- trichlorophenoxyacetic acid — an insoluble crystalline solid; 2,4,5-trichlorophenoxyacetic acid. It is a plant hormone and is used as a weedkiller. Formula: C8H5Cl3O3
- wirehaired pointing griffon — griffon2 (def 2).