| aminoacil | aminoacyl |
| aminobenzoato | aminobenzoate |
| Aminoglucósido | Aminoglycide |
| aminoración | decrease |
| aminorado | diminished |
| aminorar | weaken |
| aminorar la marcha | decelerate |
| aminotransferasa | transaminase |
| aminoácido | amino acid |
| aminoácido esencial | essential amino acid |
| aminoácidos | amino acid |
| Amintas | Amyntas |
| Amintas I | Amyntas I of Macedon |
| Amintas III de Macedonia | Amyntas III of Macedon |
| Amintas IV de Macedonia | Amyntas IV of Macedon |
| Amintore Fanfani | Amintore Fanfani |
| amiodarona | amiodarone |
| amiotrofia | amyotrophy |
| Amir Péretz | Amir Peretz |
| Amiri Baraka | Amiri Baraka |
| Amirteo | Amyrtaeus |
| Amish | Amish |
| amistad | friendliness |
| amistad con derechos | friendship with benefits |
| amistad con ventajas | friendship with benefits |
| amistar | reconcile |
| amistosamente | friendly |
| amistoso | pleasant |
| Amit Ben-Shushan | Amit Ben Shushan |
| Amitābha | Amitabha |
| Ammassalik | Ammassalik |
| Ammit | Ammit |
| Ammodorcas clarkei | Dibatag |
| Ammonites | Ammonite |
| Ammosaurus | Ammosaurus |
| Ammuna | Ammuna |
| Ammyt | Ammit |
| Ammán | Amman |
| amnesia | amnesia |
| amnesia retrógrada | retrograde amnesia |
| amnesia temporal | blackout |
| amniocéntesis | amniocentesis |
| amnios | amnion |
| amnistia | amnesty |
| amnistía | amnesty |
| Amnistía Internacional | Amnesty International |
| Amnistía Internacional acusa a Israel de cometer crímenes de guerra | Amnesty International accuses Israel of war crimes in Lebanon |
| Amnistía Internacional pide el cierre de la base de Guantánamo en su más reciente informe | Amnesty International calls for Guantanamo shutdown |
| amniótico | amniotic |
| amnésico | amnesic |
| amo | master |
| Amoblamiento | Furniture |
| amoblar | furnish |
| Amoco Cadiz | Amoco Cadiz |
| amodorrado | groggy |
| Amoeba | Amoeba distributed operating system |
| Amoebidae | Amoebidae |
| Amoebozoa | Amoebozoa |
| amoladera | whetstone |
| amoldable | adaptable |
| amoldar | form |
| amoldar a | gear to |
| Amon Leopold Goeth | Amon Göth |
| Amon Sûl | Weathertop |
| Amon Tobin | Amon Tobin |
| amonal | ammonal |
| amonestacion | admonishment |
| amonestaciones | banns |
| amonestación | reprimand |
| amonestar | tell off |
| Amonet | Amunet |
| amoniacal | ammoniated |
