| CHLORHEXIDINES | • CHLORHEXIDINE n. an antiseptic compound used in skin cleansers, mouthwashes, etc. |
| HANDKERCHIEVES | • handkerchieves n. Plural of handkerchief. • HANDKERCHIEF n. a small usually square piece of cloth used for usually personal purposes (as blowing the nose) or as a clothing accessory, also HANDKERCHER. |
| HARDHANDEDNESS | • hardhandedness n. Harshness, strictness. • hardhandedness n. The embodyment of working-class virtue; hard-working practicality. • hard-handedness n. Alternative form of hardhandedness. |
| HARDHEADEDNESS | • hardheadedness n. The characteristic of being hardheaded. • HARDHEADED n. stubborn, willful. |
| HENDECAHEDRONS | • HENDECAHEDRON n. a solid figure having 11 plane faces. |
| HUNDREDWEIGHTS | • hundredweights n. Plural of hundredweight. • HUNDREDWEIGHT n. 1/20 of a ton, or 112lb. avoirdupois. |
| HYDROMECHANICS | • hydromechanics n. (Physics) fluid mechanics, especially when dealing with water. • HYDROMECHANICS n. the study of movement in liquids, also HYDRODYNAMICS. |
| HYDRONEPHROSES | • hydronephroses n. Plural of hydronephrosis. • HYDRONEPHROSIS n. distension of the kidney with urine held up as a result of obstruction in the urinary tract. |
| HYDRONEPHROSIS | • hydronephrosis n. (Pathology) distension of the kidneys due to obstruction in the flow of urine. • HYDRONEPHROSIS n. distension of the kidney with urine held up as a result of obstruction in the urinary tract. |
| HYPOCHONDRIACS | • hypochondriacs n. Plural of hypochondriac. • HYPOCHONDRIAC n. one who suffers from hypochondria. |
| HYPOCHONDRIASM | • hypochondriasm n. Hypochondriasis. • HYPOCHONDRIASM n. hypochondria. |
| HYPOCHONDRIAST | • hypochondriast n. (Dated) A hypochondriac. • HYPOCHONDRIAST n. a hypochondriac. |
| NEIGHBOURHOODS | • neighbourhoods n. Plural of neighbourhood. • NEIGHBOURHOOD n. a district, locality, esp. with reference to its inhabitants as a community, also NEIGHBORHOOD. |
| ORTHOHYDROGENS | • orthohydrogens n. Plural of orthohydrogen. • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction. |
| SCHOOLCHILDREN | • schoolchildren n. Plural of schoolchild. • SCHOOLCHILD n. a child attending school. |
| THUNDERFLASHES | • thunderflashes n. Plural of thunderflash. • THUNDERFLASH n. a container, such as a blank shell, filled with explosive powder, which makes a flash and a loud explosion when detonated. |
| THUNDERSHOWERS | • thundershowers n. Plural of thundershower. • THUNDERSHOWER n. a shower accompanied by lightning and thunder. |
| UNTHRIFTIHEADS | • UNTHRIFTIHEAD n. (archaic) thriftlessness. |
| UNTHRIFTYHEADS | • UNTHRIFTYHEAD n. (Spenser) unthriftiness, also UNTHRIFTYHED. |