| CYCLOPROPANE | • cyclopropane n. (Organic chemistry, pharmacology) The simplest alicyclic hydrocarbon, C3H6, an inflammable gas, sometimes… • CYCLOPROPANE n. a flammable gaseous saturated cyclic hydrocarbon sometimes used as a general anesthetic. |
| HYPNOPHOBIAS | • HYPNOPHOBIA n. an irrational fear of sleep. |
| HYPOPLASTRON | • hypoplastron n. The third lateral plate in the plastron of turtles. • HYPOPLASTRON n. the plate behind the hyoplastron in a turtle's plastron. |
| HYPSOPHOBIAS | • HYPSOPHOBIA n. a fear of falling from high places. |
| MORPHOGRAPHY | • morphography n. Descriptive morphology. • MORPHOGRAPHY n. a morphological description or study. |
| OPPOSABILITY | • opposability n. The condition or quality of being opposable (capable of being placed opposite to something else). • opposability n. The condition or quality of being opposable (capable of being resisted). • OPPOSABILITY n. the state of being opposable. |
| PAPYROLOGIES | • papyrologies n. Plural of papyrology. • PAPYROLOGY n. the study of paper. |
| PAPYROLOGIST | • papyrologist n. A student of papyrology, the study of ancient writings on papyrus. • PAPYROLOGIST n. a student of papyrology. |
| PHONOTYPICAL | • phonotypical adj. Alternative form of phonotypic. • PHONOTYPICAL adj. of or like a phonotype, a printing type of phonetic alphabet, also PHONOTYPIC. |
| PHOTOTHERAPY | • phototherapy n. The use of light to treat disorders of the skin, and certain mood disorders. • PHOTOTHERAPY n. the treatment of disease by light. |
| PHYTOPHAGOUS | • phytophagous adj. (Zoology) Feeding on plants, herbivorous. • PHYTOPHAGOUS adj. feeding on plants, also PHYTOPHAGIC. |
| POLAROGRAPHY | • polarography n. (Chemistry) An electrochemical technique for the analysis of redox reactions. • POLAROGRAPHY n. a technique for determining the concentration and nature of the ions in a solution by an electrolytic process. |
| POLYPETALOUS | • polypetalous adj. (Botany) having a corolla composed of distinct, separable petals. • POLYPETALOUS adj. separate petals. |
| POLYSEPALOUS | • polysepalous adj. (Botany, of a calyx) having separate sepals. • POLYSEPALOUS adj. having separate sepals. |
| PROPITIATORY | • propitiatory adj. Intended to propitiate, reconcile, expiate or appease; conciliatory. • PROPITIATORY adj. serving to propitiate, also PROPITIATIOUS, PROPITIATIVE. • PROPITIATORY n. the mercy seat. |
| PROTOTYPICAL | • prototypical adj. Constituting or representing an original type of something that others are modelled on or derived from. • PROTOTYPICAL adj. relating to a prototype, also PROTOTYPAL, PROTOTYPIC. |
| SYNAPOMORPHY | • synapomorphy n. (Cladistics) A derived trait that is shared by two or more taxa of shared ancestry. |