| APOLOGETICAL | • apologetical adj. Apologetic. • APOLOGETICAL adj. expressing apology, also APOLOGETIC. |
| BULLETPROOFS | • bulletproofs v. Third-person singular simple present indicative form of bulletproof. • BULLETPROOF v. to make impenetrable to bullets. |
| COMPELLATION | • compellation n. (Archaic, rare) An act of addressing a person by a certain name or title. • compellation n. (Archaic, rare) A name or title by which someone is addressed or identified; an appellation, a designation. • compellation n. (Obsolete) An act of addressing or speaking to someone; also, the address or speech so made. |
| COMPTROLLERS | • comptrollers n. Plural of comptroller. • COMPTROLLER n. a royal household official who examines and supervises expenditures. |
| ELECTROPOLAR | • electropolar adj. Possessing electrical polarity; having positive and negative charges at opposite ends; said of a conductor. • ELECTROPOLAR adj. having, as an electrical conductor, one end or surface positive and the other negative. |
| GEOPOLITICAL | • geopolitical adj. Of or relating to geopolitics. • GEOPOLITICAL adj. relating to geopolitics. |
| METALLOPHONE | • metallophone n. Any musical instrument consisting of tuned metal bars which are struck to make sound. • METALLOPHONE n. an instrument like a xylophone with metal bars, the hammers being operated by hand or by means of a keyboard. |
| PALEONTOLOGY | • paleontology n. (American spelling) Study of the forms of life existing in prehistoric or geologic times, especially… • PALEONTOLOGY n. the study of fossils, also PALAEONTOLOGY. |
| PESTOLOGICAL | • pestological adj. Relating to pestology. • PESTOLOGICAL adj. related to pestology, the science of pests. |
| PETRODOLLARS | • petrodollars n. Plural of petrodollar. • petrodollars n. Money earned through the sale of petroleum. • PETRODOLLAR n. a dollar's worth of foreign exchange obtained by a petroleum exporting country through sales abroad. |
| PETROLOGICAL | • petrological adj. Of or pertaining to petrology, the study of rock formation and composition. • PETROLOGICAL adj. relating to petrology, also PETROLOGIC. |
| PHOTOLYSABLE | • photolysable adj. Capable of photolysis. • PHOTOLYSABLE adj. capable of being photolysed, also PHOTOLYZABLE. |
| PHOTOLYZABLE | • photolyzable adj. Alternative form of photolysable. • PHOTOLYZABLE adj. capable of being photolyzed, also PHOTOLYSABLE. |
| PLACENTOLOGY | • placentology n. (Medicine) The study of the placenta. • PLACENTOLOGY n. the scientific study of placentae. |
| POLYPETALOUS | • polypetalous adj. (Botany) having a corolla composed of distinct, separable petals. • POLYPETALOUS adj. separate petals. |
| SPELEOLOGIST | • speleologist n. A person who studies or explores caves or studies the science of speleology. • SPELEOLOGIST n. one who explores caves. |
| TYPHLOLOGIES | • TYPHLOLOGY n. the study of blindness and the blind. |