8-letter words containing a, d
- aldimine — (organic chemistry) An imine derived from an aldehyde; general formula RCH=NR.
- aldolase — an enzyme present in the body that breaks down fructose into triose sugars
- aldoxime — an oxime formed by reaction between hydroxylamine and an aldehyde
- aldridge — Ira Frederick ("the African Roscius") 1804?–67, U.S. actor, primarily in Europe.
- algicide — any substance that kills algae
- algidity — (medicine) The state of being algid.
- alidades — Plural form of alidade.
- alighted — Simple past tense and past participle of alight.
- alkaloid — any of a group of nitrogenous basic compounds found in plants, typically insoluble in water and physiologically active. Common examples are morphine, strychnine, quinine, nicotine, and caffeine
- alkoxide — a compound formed by the removal of a proton from an alcohol
- all told — You can use all told to introduce or follow a summary, general statement, or total.
- alledged — Simple past tense and past participle of alledge.
- alledges — Third-person singular simple present indicative form of alledge.
- allemand — Misspelling of allemande.
- allodial — (of land) held as an allodium
- allodium — lands held in absolute ownership, free from such obligations as rent or services due to an overlord
- allotted — to divide or distribute by share or portion; distribute or parcel out; apportion: to allot the available farmland among the settlers.
- alluding — Present participle of allude.
- almohade — a member of a group of puritanical Muslims, originally Berbers, who arose in S Morocco in the 12th century as a reaction against the corrupt Almoravides and who ruled Spain and all Maghrib from about 1147 to after 1213
- alreadie — Obsolete spelling of already.
- altadena — a town in SW California, near Los Angeles.
- altitude — If something is at a particular altitude, it is at that height above sea level.
- alvarado — ˈPedro de (ˈpɛdroʊ deɪ ) ; peˈdrō dā) 1495-1541; Sp. general with Cortés in the conquest of Mexico
- alveated — resembling the channels of a beehive
- amadavat — avadavat.
- amadises — a knight-errant, model of the chivalric hero.
- amaduvad — Alternative form of avadavat.
- amandine — a protein found in almonds
- amazedly — in an amazed manner
- ambedkar — Bhimrao Ramji [beem-rou rahm-jee] /ˈbim raʊ ˈrɑm dʒi/ (Show IPA), 1893–1956, Indian politician and jurist.
- amberoid — a synthetic amber made by compressing pieces of amber and other resins together at a high temperature
- ambident — (chemistry) Describing a molecule or group that has two alternative and interacting reaction sites, to either of which a bond may be made during a reaction.
- amblypod — one of the primitive ungulate mammals of the extinct order Pantodonta, from the Paleocene and Eocene epochs, having a massive body and short legs.
- ambushed — Simple past tense and past participle of ambush.
- amending — to alter, modify, rephrase, or add to or subtract from (a motion, bill, constitution, etc.) by formal procedure: Congress may amend the proposed tax bill.
- amidated — to convert into an amide.
- amidmost — in the middle or centre
- amidogen — a compound radical, NH2, derived from ammonia
- amidship — in or toward the middle part of a ship or aircraft; midway between the ends.
- aminated — to introduce an amino group into (a compound).
- ammonoid — any of the extinct group of sea-dwelling cephalopod molluscs with coiled and chambered shells
- amoeboid — of, related to, or resembling amoebae
- amounted — the sum total of two or more quantities or sums; aggregate.
- amphipod — any marine or freshwater crustacean of the order Amphipoda, such as the sand hoppers, in which the body is laterally compressed: subclass Malacostraca
- amundsen — Roald (ˈrɔald). 1872–1928, Norwegian explorer and navigator, who was the first man to reach the South Pole (1911)
- amusedly — in a way that shows one is amused
- amygdala — an almond-shaped part, such as a tonsil or a lobe of the cerebellum
- amygdale — a vesicle in a volcanic rock, formed from a bubble of escaping gas, that has become filled with light-coloured minerals, such as quartz and calcite
- amygdule — a small gas pocket, usually found in volcanic rock, partly or completely filled with a mineral, esp. a zeolite, calcite, or quartz
- an nafud — Nefud Desert.