| HALFPENNYWORTH | • halfpennyworth n. (Britain) As much as could be bought for a halfpenny (pre- or post-decimalisation). • halfpennyworth n. (Britain, informal) A negligible amount.
 • halfpennyworth n. (Britain, informal) One’s opinion or thoughts; one’s two cents.
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| HYPERALERTNESS | • hyperalertness n. The condition of being hyperalert. | 
| HYPEREMOTIONAL | • hyperemotional adj. Involving or exhibiting excessive emotion. • HYPEREMOTIONAL adj. excessively emotional.
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| HYPERINFLATION | • hyperinflation n. (Economics) A very high rate of inflation. • HYPERINFLATION n. inflation growing at a very high rate in a very short time.
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| HYPERVENTILATE | • hyperventilate v. (Intransitive) To breathe quickly and deeply, especially at an abnormally rapid rate. • HYPERVENTILATE v. to breathe rapidly and deeply.
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| LYCANTHROPISTS | • lycanthropists n. Plural of lycanthropist. • LYCANTHROPIST n. a werewolf; a person suffering from lycanthropy, also LYCANTHROPE.
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| NEUROPATHOLOGY | • neuropathology n. Neural pathology: The pathology of the nervous system, usually and especially in the sense of its cytopathology… • NEUROPATHOLOGY n. pathology of the nervous system.
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| PHARYNGOLOGIST | • pharyngologist n. A student of pharyngology; one versed in the science of pharyngology. • PHARYNGOLOGIST n. a specialist in pharyngology, the study of the throat.
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| PHENYLTHIOUREA | • phenylthiourea n. Phenylthiocarbamide. • PHENYLTHIOUREA n. a crystalline compound used to test for the presence of a certain dominant gene (the compound tasting bitter to those who possess the gene).
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| PHYTOPLANKTERS | • phytoplankters n. Plural of phytoplankter. • PHYTOPLANKTER n. a planktonic plant.
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| PLATYRRHINIANS | • PLATYRRHINIAN n. someone with a short flat nose. | 
| PLAYWRIGHTINGS | • PLAYWRIGHTING n. the writing of plays. | 
| POLYHISTORIANS | • polyhistorians n. Plural of polyhistorian. • POLYHISTORIAN n. a person of great and varied learning, also POLYHISTOR.
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| RADIOTELEPHONY | • radiotelephony n. The transmission of sound (in both directions) using modulated radio waves rather than wires. • radio␣telephony n. The transmission of speech using modulated radio waves.
 • RADIOTELEPHONY n. communication by radiotelephone.
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| TRIPHENYLAMINE | • triphenylamine n. (Chemistry) A tertiary amine whose derivatives have useful properties in electrical conductivity and… • TRIPHENYLAMINE n. a crystalline compound corresponding to ammonia with all the hydrogen replaced by phenyl.
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