| BATHYSPHERES | • bathyspheres n. Plural of bathysphere. • BATHYSPHERE n. a submersible observation chamber. |
| CHAPTERHOUSE | • chapterhouse n. Alternative spelling of chapter house. • chapter-house n. Alternative spelling of chapter house. • chapter␣house n. A building attached to a cathedral, church, or monastery and used as a meeting place. |
| CHRISTOPHENE | • christophene n. Alternative form of christophine. |
| HEPTAHEDRONS | • heptahedrons n. Plural of heptahedron. • HEPTAHEDRON n. a solid figure having several plane faces. |
| HETEROPHILES | • heterophiles n. Plural of heterophile. • HETEROPHILE n. a polymorphonuclear leukocyte in humans that may be stained with dyes, also HETEROPHIL. |
| HETEROTROPHS | • heterotrophs n. Plural of heterotroph. • HETEROTROPH n. a secondary feeder eating plants or other animals. |
| HYPERSTHENES | • hypersthenes n. Plural of hypersthene. • HYPERSTHENE n. a rock-forming orthorhombic silicate of magnesium and ferrous iron. |
| HYPERSTHENIA | • hypersthenia n. (Pathology, archaic) A morbid condition marked by excessive excitement of all the vital phenomena. • HYPERSTHENIA n. a morbid condition marked by excessive excitement of all the vital phenomena. |
| HYPERSTHENIC | • hypersthenic adj. (Mineralogy) Composed of, or containing, hypersthene. • hypersthenic adj. Having or relating to hypersthenia. • hypersthenic n. A person who has hypersthenia. |
| HYPOTHESISER | • hypothesiser n. Alternative form of hypothesizer. • HYPOTHESISER n. one who hypothesises, also HYPOTHESIZER. |
| HYPOTHESIZER | • hypothesizer n. A person who hypothesizes. • hypothesizer n. (Computing) Any of several systems that attempt to make educated guesses from incomplete information. • HYPOTHESIZER n. one who hypothesizes, also HYPOTHESISER. |
| LITHOSPHERES | • lithospheres n. Plural of lithosphere. • LITHOSPHERE n. the solid outer portion of the Earth consisting of the crust and upper mantle, approximately 100 km (62 miles) thick. |
| PHOTOSPHERES | • photospheres n. Plural of photosphere. • PHOTOSPHERE n. the sun's luminous envelope. |
| SHAPESHIFTER | • shapeshifter n. (Fantasy, mythology, science fiction) A person or creature capable of changing their appearance or form at will. • shape-shifter n. (Fantasy, mythology, science fiction) Alternative form of shapeshifter. • SHAPESHIFTER n. (in folklore) a creature that has the ability to change its physical form at will. |
| TEACHERSHIPS | • teacherships n. Plural of teachership. • TEACHERSHIP n. the office of teacher. |
| THERMOPHILES | • thermophiles n. Plural of thermophile. • THERMOPHILE n. a bacteria, plant etc. requiring or thriving in high temperatures, also THERMOPHIL, THERMOPHILIC, THERMOPHILOUS. |
| THERMOSPHERE | • thermosphere n. The layer of the Earth’s atmosphere directly above the mesosphere and directly below the exosphere. • THERMOSPHERE n. the outermost layer of the atmosphere. |
| TROCHOSPHERE | • trochosphere n. (Zoology) A young larval form of many annelids, mollusks, and bryozoans, in which a circle of cilia… • TROCHOSPHERE n. a free-swimming pelagic form of many invertebrates, also TROCHOPHORE. |