| HYALURONIDASES | • hyaluronidases n. Plural of hyaluronidase. • HYALURONIDASE n. a mucolytic enzyme that facilitates the spread of fluids through tissues by lowering the viscosity of hyaluronic acid. |
| HYDRAULICKINGS | • HYDRAULICKING n. the act of excavating with powerful jets of water. |
| HYDROPNEUMATIC | • hydropneumatic adj. Operated by both fluid and air power. • hydropneumatic adj. Being, or pertaining to, a type of automotive suspension system based on a nitrogen springing medium. • HYDROPNEUMATIC adj. utilizing water and air acting together. |
| HYPERMASCULINE | • hypermasculine adj. Extremely masculine. • HYPERMASCULINE adj. excessively masculine. |
| HYPERURBANISMS | • hyperurbanisms n. Plural of hyperurbanism. • HYPERURBANISM n. use of hypercorrect forms in language. |
| ICHTHYOSAURIAN | • ichthyosaurian adj. (Paleontology) Of or relating to the Ichthyosauria. • ichthyosaurian n. (Paleontology) Any of the Ichthyosauria; an ichthyosaur. • ICHTHYOSAURIAN n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURUS. |
| INHARMONIOUSLY | • inharmoniously adv. In an inharmonious way. • INHARMONIOUS adv. not harmonious. |
| PHENYLTHIOUREA | • phenylthiourea n. Phenylthiocarbamide. • PHENYLTHIOUREA n. a crystalline compound used to test for the presence of a certain dominant gene (the compound tasting bitter to those who possess the gene). |
| TURBOMACHINERY | • turbomachinery n. Turbomachines collectively. • TURBOMACHINERY n. machinery consisting of, incorporating, or constituting a turbine. |
| UNCHIVALROUSLY | • unchivalrously adv. In an unchivalrous manner; without chivalry. • UNCHIVALROUS adv. not chivalrous. |
| UNDECIPHERABLY | • undecipherably adv. In an undecipherable manner. |
| UNHISTORICALLY | • unhistorically adv. In an unhistoric or unhistorical manner. |
| UNHYSTERICALLY | • unhysterically adv. Without hysteria. • UNHYSTERICAL adv. not hysterical. |
| UNPRAISEWORTHY | • unpraiseworthy adj. Not praiseworthy. • UNPRAISEWORTHY adj. not praiseworthy. |
| UNRHYTHMICALLY | • unrhythmically adv. In an unrhythmic or unrhythmical manner. • UNRHYTHMICAL adv. not rhythmical, also UNRHYTHMIC. |
| UNTHRIFTYHEADS | • UNTHRIFTYHEAD n. (Spenser) unthriftiness, also UNTHRIFTYHED. |