| ACIDURIAS | • acidurias n. Plural of aciduria. • ACIDURIA n. excessive acid in the urine. |
| ANTIAUXIN | • antiauxin n. (Biochemistry) Any substance that inhibits auxin by competing for the same receptors. • ANTIAUXIN n. a plant substance that opposes or represses the effects of an auxin, a growth hormone. |
| AQUARIIST | • aquariist n. (Dated) One who keeps fish in an aquarium. • AQUARIIST n. (obsolete) a curator of an aquarium, also AQUARIST. |
| AQUILEGIA | • aquilegia n. (Botany) Any member of the genus Aquilegia. • Aquilegia prop.n. A taxonomic genus within the family Ranunculaceae – the columbines. • AQUILEGIA n. a genus of plants including columbine. |
| AUBRIETIA | • aubrietia n. A creeping perennial plant native to southeastern Europe, Aubrieta deltoidea, grown as a groundcover… • AUBRIETIA n. any of several dwarf trailing cruciferous plants of the genus Aubrieta, usually bearing violet or purple flowers, also AUBRETIA, AUBRIETA. |
| AUDIENCIA | • audiencia n. (Historical) An appellate court of the Spanish empire. • AUDIENCIA n. (Spanish) a court of government or justice in the Spanish American empire. |
| AUDITORIA | • auditoria n. Plural of auditorium. • AUDITORIUM n. (Latin) the part of a theatre, lecture-hall, or other public building occupied by the audience. |
| AUMAILING | • aumailing v. Present participle of aumail. • AUMAIL v. (archaic) to enamel. |
| AUXILIARS | • auxiliars n. Plural of auxiliar. • AUXILIAR n. (archaic) an auxiliary. |
| AUXILIARY | • auxiliary adj. Helping; giving assistance or support. • auxiliary adj. Supplementary or subsidiary. • auxiliary adj. Held in reserve for exceptional circumstances. |
| BAUHINIAS | • bauhinias n. Plural of bauhinia. • BAUHINIA n. a plant of the Bauhinia genus of tropical trees. |
| IGUANIANS | • iguanians n. Plural of iguanian. • IGUANIAN n. an animal of the iguana family. |
| LUMINARIA | • luminaria n. A vigil fire used in ceremonies in Native American and Hispanic cultures. • luminaria n. A makeshift lantern used as a holiday decoration, especially in Hispanic culture. • luminaria n. Plural of luminarium. |
| QUADRIVIA | • quadrivia n. Plural of quadrivium. • QUADRIVIUM n. (Latin) a higher division of seven liberal arts studied in the Middle Ages, comprising arithmetic, music, astronomy, geometry. |
| QUILLAIAS | • QUILLAIA n. an evergreen tree, also QUILLAI, QUILLAJA. |
| UNCINARIA | • Uncinaria prop.n. A taxonomic genus within the family Ancylostomatidae – certain nematodes that cause certain hookworm… • UNCINARIA n. hookworm. |
| UNITARIAN | • unitarian adj. Espousing a unitary view of something. • unitarian n. One who denies the doctrine of the Trinity, believing that God exists only in one person; a unipersonalist. • unitarian n. (Islam) A Muwahhid. |
| URTICARIA | • urticaria n. (Pathology) Itchy, swollen, red areas of the skin which can appear quickly in response to an allergen… • URTICARIA n. nettle rash, hives. |