| ANAGLYPHIES | • ANAGLYPHY n. (Greek) the art of carving in low relief. |
| GEOPHYSICAL | • geophysical adj. Of or pertaining to geophysics. • GEOPHYSICAL adj. relating to geophysics. |
| HELIOGRAPHY | • heliography n. The scientific study of the sun. • heliography n. The art of making a heliograph. • heliography n. The system of signalling by heliograph. |
| HELIOTYPING | • heliotyping v. Present participle of heliotype. • HELIOTYPE v. to obtain such a picture. |
| HIEROGLYPHS | • hieroglyphs n. Plural of hieroglyph. • HIEROGLYPH n. a character used in a system of hieroglyphic writing, also HIEROGLYPHIC. |
| HYGROPHILES | • HYGROPHILE n. a plant loving moist places, also HYDROPHILE. |
| HYPALGESIAS | • hypalgesias n. Plural of hypalgesia. • HYPALGESIA n. diminished susceptibility to pain, also HYPALGIA. |
| HYPERMILING | • hypermiling n. Driving a car slowly so as to maximize fuel efficiency. • HYPERMILING n. the practice of maximizing the fuel economy of a motor vehicle, especially through driving technique and vehicle maintenance. |
| HYPNOLOGIES | • HYPNOLOGY n. the study of sleep or hypnosis. |
| PERISHINGLY | • perishingly adv. (Colloquial) extremely. • PERISHING adv. PERISH, to die. |
| PHILOGYNIES | • PHILOGYNY n. the love of women. |
| PHYCOLOGIES | • PHYCOLOGY n. the study of algae, aka algology. |
| PHYLOGENIES | • phylogenies n. Plural of phylogeny. • PHYLOGENY n. the evolutionary development of a species, a group of organisms, or a particular feature of an organism. |
| PHYTOLOGIES | • phytologies n. Plural of phytology. • PHYTOLOGY n. the study of plants. |
| PIGHEADEDLY | • pigheadedly adv. In a pigheaded manner. • PIGHEADED adv. obstinate. |
| POLYPHAGIES | • POLYPHAGY n. the practice or faculty of subsisting on many kinds of food. |
| PREACHINGLY | • preachingly adv. In a way that preaches. • PREACHING adv. advocating urgently. |