| AEROHYDROPLANES | • AEROHYDROPLANE n. a winged hydroplane or flying-boat. |
| CHORDAMESODERMS | • CHORDAMESODERM n. the layer of specialized cells in the middle of a developing embryo which forms the notochord and structures of the central nervous system. |
| DERMATOGRAPHIES | • DERMATOGRAPHY n. anatomical description of the skin, also DERMOGRAPHY. |
| FURFURALDEHYDES | • FURFURALDEHYDE n. a liquid obtained by heating bran with dilute sulphuric acid, also FURAL, FURFURAL, FURFUROL, FURFUROLE, FUROL, FUROLE. |
| HARDHEARTEDNESS | • hardheartedness n. (Uncountable) The state of being hardhearted. • hardheartedness n. (Countable) A hardhearted thought or act. • hard-heartedness n. Alternative form of hardheartedness. |
| HEADMISTRESSIER | • HEADMISTRESSY adj. like a headmistress, bossy. |
| HEREDITARIANISM | • hereditarianism n. The school of thought that heredity is more important than factors such as environment in determining… • HEREDITARIANISM n. the view that heredity is the major factor in determining human and animal behaviour. |
| HEREDITARIANIST | • hereditarianist n. One who subscribes to the theory of hereditarianism. • HEREDITARIANIST n. a proponent of hereditarianism. |
| HYPERADRENALISM | • hyperadrenalism n. (Pathology) An excessive level of adrenal hormones in the body. • HYPERADRENALISM n. excessive activity of the adrenal gland. |
| ICOSITETRAHEDRA | • icositetrahedra n. Plural of icositetrahedron. • ICOSITETRAHEDRA n. solid figures with twenty-four plane faces (plural of 16-letter word). |
| PSEUDOARTHROSES | • pseudoarthroses n. Plural of pseudoarthrosis. • PSEUDOARTHROSIS n. a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united, also PSEUDARTHROSIS. |
| RADIOTELEGRAPHS | • radiotelegraphs n. Plural of radiotelegraph. • RADIOTELEGRAPH n. wireless telegraphy. |
| SPHAEROSIDERITE | • sphaerosiderite n. Alternative form of spherosiderite. • SPHAEROSIDERITE n. concretionary clay-ironstone. |
| TETARTOHEDRISMS | • tetartohedrisms n. Plural of tetartohedrism. • TETARTOHEDRISM n. the state of being tetartohedral, having one fourth the number of planes required by complete symmetry. |
| TRUEHEARTEDNESS | • trueheartedness n. The quality of being true-hearted. • TRUEHEARTEDNESS n. the state of being truehearted. |
| WARMHEARTEDNESS | • warmheartedness n. The quality of being warmhearted. • warm-heartedness n. The quality of being warm-hearted. • WARMHEARTEDNESS n. the state of being warmhearted. |