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 There are 10 twelve-letter words containing A, 2O, 2P, R and Y| 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.
 |  | HYPOPLASTRON | • hypoplastron n. The third lateral plate in the plastron of turtles. • HYPOPLASTRON n. the plate behind the hyoplastron in a turtle's plastron.
 |  | MORPHOGRAPHY | • morphography n. Descriptive morphology. • MORPHOGRAPHY n. a morphological description or study.
 |  | 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.
 |  | 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.
 |  | 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.
 |  | 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. | 
 Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.Definitions are short excerpt from the WikWik.org and 1Word.ws.
 
 See this list for:English Wiktionary: 66 wordsScrabble in French: 17 wordsScrabble in Spanish: 1 wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: no word
 
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