| DIATHERMACY | • DIATHERMACY n. permeability by or conductibility of radiant heat, also DIATHERMANCY. |
| DYNAMOGRAPH | • dynamograph n. A dynamometer that produces a graphical record; especially one used to record muscular power. • DYNAMOGRAPH n. an instrument for recording mechanical forces. |
| HAMADRYADES | • hamadryades n. Plural of hamadryad. • HAMADRYAD n. (Greek) a wood nymph associated with one particular tree; a king cobra. |
| HAMADRYASES | • hamadryases n. Plural of hamadryas. • HAMADRYAS n. (Greek) a type of baboon. |
| HEBDOMADARY | • hebdomadary adj. (Obsolete) hebdomadal. • hebdomadary n. A member of a Roman Catholic chapter or convent whose week it is to officiate in the choir and perform… • HEBDOMADARY n. a member of a chapter or convent, who takes his or her weekly turn in performing the sacred offices of the Church. |
| HYBRIDOMATA | • hybridomata n. Plural of hybridoma. • HYBRIDOMA n. a hybrid cell produced by the fusion of an antibody-producing lymphocyte with a tumor cell. |
| HYDROMANIAS | • HYDROMANIA n. an irrational craving for water. |
| HYDROSOMATA | • hydrosomata n. Plural of hydrosoma. • HYDROSOMA n. all the zooids of a hydroid colony collectively, also HYDROSOME. |
| PACHYDERMAL | • pachydermal adj. Synonym of pachydermic. • pachydermal adj. Grainy. • PACHYDERMAL adj. of or like a pachyderm. |
| PACHYDERMIA | • pachydermia n. (Medicine) Elephantiasis. • pachydermia n. (Medicine) Increased resistance of the red cells in anemia. • PACHYDERMIA n. elephantiasis. |
| PSYCHODRAMA | • psychodrama n. A form of psychotherapy in which a patient acts a role in a context devised by a psychotherapist. • psychodrama n. A drama in this form. • psychodrama n. (Rare) A dramatic work focusing on the psychology of its characters. |
| RHABDOMANCY | • rhabdomancy n. Divination with wands or rods, especially to use a divining rod to find things below the ground. • RHABDOMANCY n. divination by wands or rods. |
| RHABDOMYOMA | • rhabdomyoma n. (Pathology) A non-cancerous tumor of skeletal muscle. • RHABDOMYOMA n. a tumour of striated muscle. |