| A | B |
|---|
| admixture (ad·mix·ture) | : something added by mixing : something formed by mixing |
| adsorbent (ad·sor·bent) | : a usually solid substance that adsorbs another substance adsorbent adjective |
| adulterate (adul·ter·ate) | : to make (something, such as a food or drink) impure or weaker by adding something of poor quality |
| aeroembolism (aero·em·bo·lism) | : decompression sickness caused by rapid ascent to high altitudes and resulting exposure to rapidly lowered air pressure |
| aerosol (aero·sol) | : a substance (such as hair spray or medicine) that is kept in a container under pressure and that is released as a fine spray when a button is pressed |
| affirmation (af·fir·ma·tion) | : a positive assertion : a solemn declaration made under the penalties of perjury by a person who conscientiously declines taking an oath |
| aftereffect (af·ter·ef·fect) | : an effect that occurs after time has passed : an effect that follows its cause after an interval |
| aggiornamento (ag·gior·na·men·to) | : a bringing up to date : modernization |
| aggrandize (ag·gran·dize) | : to make appear great or greater : praise highly |
| agilely (ag·ile) | : able to move quickly and easily : quick, smart, and clever |
| agrostology (ag-ruh-stol-uh-jee) | : the branch of botany dealing with grasses. : Greek ágrōst (is) name of certain grasses + -o- + -logy |
| aioli (ai·o·li) | : a mayonnaise flavored with garlic and sometimes other ingredients (as red pepper) |
| alastor, Alastor (uh-las-ter, ‐tawr) | : (sometimes initial capital letter) an avenging spirit or deity frequently evoked in Greek tragedy; a male Nemesis. |
| albedo (al·be·do) | : reflective power; specifically : the fraction of incident radiation (as light) that is reflected by a surface or body (as the moon or a cloud) |
| alcalde (al·cal·de) | : the chief administrative and judicial officer or the mayor of a town in a Spanish-speaking country or region |
| alderman (al·der·man) | : (an elected member of a municipal council.) a member of a city government in the U.S., Canada, and Australia : a senior member of an English town, county, or borough council who is elected by the other members |
| aleatory (ale·a·to·ry) | : depending on an uncertain event or contingency as to both profit and loss :relating to luck and especially to bad luck. |
| alembic (alem·bic) | : an apparatus used in distillation : something that refines or transmutes as if by distillation. |
| algor mortis (al·gor mor·tis) | : the gradual cooling of the body following death |
| All Fools’ Day (sometimes called All Fools' Day) | : is celebrated every year on April 1 by playing practical jokes and spreading hoaxes. The jokes and their victims are called April fools. |
