| ARCHAEOPTERYX | • archaeopteryx n. Alternative spelling of archeopteryx. • Archaeopteryx prop.n. A taxonomic genus within the family Archaeopterygidae – known from fossils and widely accepted as the…
 • archæopteryx n. Rare spelling of archeopteryx.
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| EXTEMPORARILY | • extemporarily adv. In an extemporary manner. • EXTEMPORARY adv. unpremeditated; esp. of prayer, discourse, composition, etc., also EXTEMPORANEOUS, EXTEMPORE.
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| EXTERMINATORY | • exterminatory adj. Relating to or marked by extermination. • EXTERMINATORY adj. of, relating to, or marked by extermination.
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| EXTRALIMITARY | • extralimitary adj. Beyond the limit or bounds. • EXTRALIMITARY adj. not found within a given faunal area; lying outside a prescribed area.
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| EXTRALITERARY | • extraliterary adj. Outside literature. • EXTRALITERARY adj. lying outside the field of literature.
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| EXTRAORDINARY | • extraordinary adj. Not ordinary; exceptional; unusual. • extraordinary adj. Remarkably good.
 • extraordinary adj. Special or supernumerary.
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| EXTRAPOLATORY | • extrapolatory adj. Serving to extrapolate. • EXTRAPOLATORY adj. of or like an extrapolation.
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| HYDROTHORAXES | • hydrothoraxes n. Plural of hydrothorax. • HYDROTHORAX n. water liquid in the pleural cavity.
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| HYPERPROSEXIA | • hyperprosexia n. (Medicine, rare) Excessive attention; an abnormal state in which a person concentrates on one thing… • HYPERPROSEXIA n. abnormal powers of perception, as in Australian aboriginal trackers.
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| HYPERPYREXIAL | • hyperpyrexial adj. Exhibiting or relating to hyperpyrexia. • HYPERPYREXIAL adj. showing hyperpyrexia, an extremely high fever.
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| HYPERPYREXIAS | • hyperpyrexias n. Plural of hyperpyrexia. • HYPERPYREXIA n. an extremely high fever, with a temperature of 41 degrees Centigrade or above, also HYPERTHERMY.
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| PARAMYXOVIRUS | • paramyxovirus n. (Virology) Any member of the Paramyxoviridae family of negative-sense single-stranded RNA viruses responsible… • PARAMYXOVIRUS n. any of a group of viruses which includes the mumps and measles viruses.
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| PROPAROXYTONE | • proparoxytone adj. (Linguistics, of a word) Having the stress or accent on the antepenultimate syllable. • proparoxytone n. (Linguistics) A proparoxytone word.
 • PROPAROXYTONE n. in ancient Greek, a word having the acute accent on the third last syllable.
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| TRICARBOXYLIC | • tricarboxylic adj. (Organic chemistry) Having three carboxylic groups. • TRICARBOXYLIC adj. containing three carboxyl groups in the molecule.
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