| HYDROTHERMALLY | • hydrothermally adv. By hydrothermal means. • HYDROTHERMAL adv. designating naturally hot underground water that has geological effects. |
| HYDROXYAPATITE | • hydroxyapatite n. A basic calcium phosphate mineral that is the principal inorganic constituent of bone and teeth. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone. |
| HYDROXYLAMINES | • hydroxylamines n. Plural of hydroxylamine. • HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions. |
| HYPERBOLICALLY | • hyperbolically adv. In a hyperbolic manner. • HYPERBOLICAL adv. relating to a kind of mathematical curve, also HYPERBOLIC. |
| HYPERGOLICALLY | • hypergolically adv. In a hypergolic way. • HYPERGOLIC adv. igniting on contact, applied e.g. to rocket fuel which ignites spontaneously on contact with an oxidizing agent. |
| HYPERSONICALLY | • hypersonically adv. In a hypersonic way. • HYPERSONIC adv. flying at more than five times the speed of sound. |
| HYPODERMICALLY | • hypodermically adv. By hypodermic means. • HYPODERMIC adv. of or pertaining to the parts under the skin. |
| PHYTOGEOGRAPHY | • phytogeography n. (Biology) The science that studies the geographical distribution of plants; geobotany. • PHYTOGEOGRAPHY n. the geography of plant distribution. |
| PSYCHOANALYSER | • psychoanalyser n. One who psychoanalyses. • PSYCHOANALYSER n. one who psychoanalyses, also PSYCHOANALYZER. |
| PSYCHOANALYZER | • psychoanalyzer n. Alternative form of psychoanalyser. • PSYCHOANALYZER n. one who psychoanalyzes, also PSYCHOANALYSER. |
| PYROCHEMICALLY | • pyrochemically adv. In a pyrochemical way; by means of pyrochemistry. • PYROCHEMICAL adv. relating to chemical changes at high temperatures. |
| RHABDOMYOLYSES | • rhabdomyolyses n. Plural of rhabdomyolysis. |
| XEROPHYTICALLY | • xerophytically adv. As a xerophyte. • XEROPHYTIC adv. able to withstand drought. |