| HETEROZYGOSITY | • heterozygosity n. The condition of being heterozygous. • HETEROZYGOSITY n. the state of being heterozygous. |
| HYDROGENOLYSIS | • hydrogenolysis n. (Chemistry) the cleavage of a molecule, especially that of a carbon-carbon bond, with the addition of… • HYDROGENOLYSIS n. a chemical reaction in which a compound is decomposed by hydrogen. |
| 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. |
| HYDROXYPROLINE | • hydroxyproline n. (Biochemistry) A hydroxy derivative of the amino acid proline found in the structural proteins of connective tissue. • HYDROXYPROLINE n. an amino acid. |
| 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. |
| HYPERTROPHYING | • hypertrophying v. Present participle of hypertrophy. • HYPERTROPHY v. to grow to abnormal size. |
| HYPERVISCOSITY | • hyperviscosity n. Increased viscosity, especially of the blood. • HYPERVISCOSITY n. extreme viscosity. |
| HYPODERMICALLY | • hypodermically adv. By hypodermic means. • HYPODERMIC adv. of or pertaining to the parts under the skin. |
| PHYCOERYTHRINS | • phycoerythrins n. Plural of phycoerythrin. • PHYCOERYTHRIN n. any of the red protein pigments in the cells of red algae. |
| PHYTOCHEMISTRY | • phytochemistry n. (Chemistry, botany) The scientific study of the chemicals found in plants. • phytochemistry n. (Botany) The collection of chemicals and chemical processes found in a particular plant. • PHYTOCHEMISTRY n. the chemistry of plants. |
| PYROCHEMICALLY | • pyrochemically adv. In a pyrochemical way; by means of pyrochemistry. • PYROCHEMICAL adv. relating to chemical changes at high temperatures. |
| XEROPHYTICALLY | • xerophytically adv. As a xerophyte. • XEROPHYTIC adv. able to withstand drought. |