| HYDROSKI | • hydroski n. A ski allowing a seaplane to land on water. • HYDROSKI n. a plate attached to a seaplane to facilitate takeoff and landings. |
| HYDROSKIS | • hydroskis n. Plural of hydroski. • HYDROSKI n. a plate attached to a seaplane to facilitate takeoff and landings. |
| KRYOLITHS | • KRYOLITH n. an aluminum ore, also CRYOLITE, KRYOLITE. |
| HORNYWINKS | • hornywinks n. Plural of hornywink. • HORNYWINK n. (dialect) a lapwing. |
| HYGRODEIKS | • hygrodeiks n. Plural of hygrodeik. • HYGRODEIK n. a form of hygrometer having wet and dry bulb thermometers. |
| MATRYOSHKI | • matryoshki n. Plural of matryoshka. • MATRYOSHKA n. (Russian) a hollow wooden doll, also MATRIOSHKA, MATROYSHKA. |
| POKERISHLY | • pokerishly adv. In a pokerish manner. • POKERISH adv. (US colloquial) mysterious and frightening; ghostly, uncanny. |
| KYMOGRAPHIES | • kymographies n. Plural of kymography. • KYMOGRAPHY n. using a kymograph, an instrument for recording fluid pressure. |
| LOCKSMITHERY | • locksmithery n. The work of a locksmith. • LOCKSMITHERY n. the craft of the locksmith. |
| HOLIDAYMAKERS | • holidaymakers n. Plural of holidaymaker. • holiday-makers n. Plural of holiday-maker. • HOLIDAYMAKER n. someone on holiday. |
| HYDROKINETICS | • hydrokinetics n. (Physics) The branch of physics concerned with the movement of fluids. • HYDROKINETICS n. the study of the motion of fluids. |
| HETEROKARYOSIS | • heterokaryosis n. (Biology) The condition of being a heterokaryon. • HETEROKARYOSIS n. the condition of having cells that are heterokaryons. |
| HYDROCRACKINGS | • hydrocrackings n. Plural of hydrocracking. • HYDROCRACKING n. the process of cracking hydrocarbons in the presence of hydrogen. |
| HYPERKERATOSIS | • hyperkeratosis n. (Pathology) Excess keratin formation on the skin surface, as can be seen in a number of dermatologic conditions. • HYPERKERATOSIS n. hypertrophy of the horny layer of the skin. |
| BRACHYPINAKOIDS | • BRACHYPINAKOID n. a pinakoid or prism parallel to the brachydiagonal. |