| AEROELASTICIAN | • aeroelastician n. A scientist or engineer whose speciality is aeroelasticity. • AEROELASTICIAN n. a person who studies flutter and vibration in high-speed aircraft.
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| AEROMECHANICAL | • aeromechanical adj. Of or pertaining to aeromechanics. • AEROMECHANICAL adj. relating to aeromechanics.
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| APPERTAINANCES | • appertainances n. Plural of appertainance. • APPERTAINANCE n. (obsolete) an appurtenance.
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| ARCHAEBACTERIA | • archaebacteria n. Plural of archaebacterium. • Archaebacteria prop.n. (Obsolete) A taxonomic subkingdom within the kingdom Bacteria.
 • Archaebacteria prop.n. Archaea, a domain comprising organisms formerly called archaebacteria.
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| AROMATHERAPIES | • aromatherapies n. Plural of aromatherapy. • AROMATHERAPY n. a therapy involving the use of scents.
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| CANCELLARIATES | • CANCELLARIATE n. the office of chancellor. | 
| CARBAMAZEPINES | • carbamazepines n. Plural of carbamazepine. • CARBAMAZEPINE n. an anticonvulsant drug used in the management of epilepsy.
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| DISAPPEARANCES | • disappearances n. Plural of disappearance. • DISAPPEARANCE n. the act of disappearing.
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| EXTRAVAGANCIES | • extravagancies n. Plural of extravagancy. • EXTRAVAGANCY n. an instance of excess or prodigality, also EXTRAVAGANCE.
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| HYPERCALCAEMIA | • hypercalcaemia n. Alternative spelling of hypercalcemia. • HYPERCALCAEMIA n. an excess of calcium in the blood, also HYPERCALCEMIA.
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| HYPERNATRAEMIA | • hypernatraemia n. Alternative form of hypernatremia. • HYPERNATRAEMIA n. an abnormally high concentration of sodium chloride (salt) in the blood, esp. in infants.
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| INTERAVAILABLE | • interavailable adj. (Public transport) Such that tickets purchased for one route or service can be used on another. | 
| MACRENCEPHALIA | • MACRENCEPHALIA n. the condition of having an abnormally large brain, also MACRENCEPHALY, MACROCEPHALIA. | 
| METANARRATIVES | • metanarratives n. Plural of metanarrative. • METANARRATIVE n. (in postmodernist literary theory) a narrative about a narrative or narratives.
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| PALAEOGRAPHIES | • palaeographies n. Plural of palaeography. • palæographies n. Plural of palæography.
 • PALAEOGRAPHY n. the study of ancient writings, also PALEOGRAPHY.
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| REACQUAINTANCE | • reacquaintance n. Acquaintance again or anew. • REACQUAINTANCE n. a new acquaintance.
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| SACRAMENTARIES | • sacramentaries n. Plural of sacramentary. • SACRAMENTARY n. a book containing all the prayers and ceremonies used at the celebration of the Roman Catholic sacraments.
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| SEPTUAGENARIAN | • septuagenarian n. Synonym of seventysomething: a person between 70 and 79 years old. • septuagenarian adj. Of or related to seventysomethings.
 • SEPTUAGENARIAN n. a person whose age is in the seventies.
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| UNMARRIAGEABLE | • unmarriageable adj. Not marriageable, unsuitable for marriage. • unmarriageable adj. That cannot be reconciled, inconsistent.
 • UNMARRIAGEABLE adj. not marriageable.
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| VALERIANACEOUS | • valerianaceous adj. Of or pertaining to the flowering plant genus Valeriana. • VALERIANACEOUS adj. belonging to the valerian family.
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