| abortionist |
one who performs abortions, esp. illegally. |
| abortive |
failing to achieve a desired end; unsuccessful; fruitless. [3 definitions] |
| ABO system |
a classification system for the inherited antigens found on the surface of human red blood cells, which determine compatibility for blood transfusions. |
| abound |
to be found or available in a large amount or number. [2 definitions] |
| about |
concerning. [12 definitions] |
| about face |
a military command to turn and face the opposite direction. |
| about-face |
a reversal of one's position or direction, esp. in response to a military command. [3 definitions] |
| about to |
ready to; just on the point of. |
| above |
at or to a higher place than. [9 definitions] |
| above all |
more importantly than anything else. [2 definitions] |
| aboveboard |
without tricks, deceit, or concealment. |
| abovementioned |
introduced or discussed in an earlier part of a written text. [2 definitions] |
| ab ovo |
(Latin) from the egg; from the beginning. |
| abracadabra |
a nonsense word thought to produce a magical effect such as the warding off of disaster or disease. [2 definitions] |
| abradant |
am abrasive substance. [2 definitions] |
| abrade |
to rub away by friction; erode. [4 definitions] |
| Abraham |
according to the Old Testament, the first of the postdiluvian patriarchs, father of Isaac, and ancestor of the Hebrews. |
| Abraham Lincoln |
the 16th President of the United States (1861-1865), who was Commander-in-Chief of the Union troops during the American Civil War and who signed the Emancipation Proclamation, thus bringing an end to slavery in the United States (b.1809--d.1865). |
| abranchiate |
lacking gills. |
| abrasion |
a spot or patch that has been scraped, as on the skin. [2 definitions] |
| abrasive |
a material or substance used to grind or polish surfaces. [3 definitions] |