| amigo | friendly |
| amigo do ambiente | environment friendly |
| amigo do peito | bosom friend |
| Amigo imaginário | Imaginary friend |
| amigo na necessidade é amigo de verdade | a friend in need is a friend indeed |
| amigo íntimo | bosom friend |
| amigo(a) da onça | palligator (slang) |
| amigoi | friend |
| amigos | friends |
| Amigos das Americas | Amigos de las Américas |
| amiguismo | cronyism |
| amigável | friendly |
| Amila | Amila |
| amilase | amylase |
| Amilcare Ponchielli | Amilcare Ponchielli |
| amilenismo | amillennialism |
| amilenista | amillennialist |
| amilina | amylin |
| Amillis | Amillis |
| Amilly | Amillis |
| amilocaína | amylocaine |
| amilofagia | amylophagia |
| amiloglucosidase | amyloglucosidase |
| amiloide | amyloid |
| amiloidogénico | amyloidogenic |
| amiloidogênico | amyloidogenic |
| amiloidose | amyloidosis |
| amiloidótico | amyloidotic |
| amilolítico | amylolytic |
| amilopectina | amylopectin |
| amiloplasto | amyloplast |
| amilopsina | amylopsin |
| amilorida | amiloride |
| amilose | amylose |
| amiláceo | amylaceous |
| amimia | amimia |
| Amimitl | Amimitl |
| Amin al-Husayni | Mohammad Amin al-Husayni |
| Amin Gemayel | Amine Gemayel |
| Amin Maalouf | Amin Maalouf |
| amina | amine |
| Amina aromática | Aromatic amine |
| Amina bint Wahab | Aminah bint Wahb |
| Aminadabe | Amminadab |
| aminação | amination |
| Amine Gemayel | Amine Gemayel |
| Amineptina | Amineptine |
| amino- | amino- |
| amino-terminal | amino-terminal |
| aminoacetofenona | aminoacetophenone |
| aminoaciduria | aminoaciduria |
| aminoacidúria | aminoaciduria |
| aminoacil-tRNA sintetase | aminoacyl tRNA synthetase |
| aminoacilado | aminoacylated |
| aminoacilação | aminoacylation |
| aminoacridina | aminoacridine |
| aminoacídico | aminoacidic |
| aminoalquila | aminoalkyl |
| aminoamida | aminoamide |
| aminobenzoato | aminobenzoate |
| aminobutírico | aminobutyric |
| aminociclopropano | aminocyclopropane |
| aminoesteroide | aminosteroid |
| aminofenazona | aminophenazone |
| aminofenol | aminophenol |
| aminofilina | aminophylline |
| Aminoglicosido | Aminoglycide |
| aminoglicosídeo | aminoglycoside |
| aminoglicosídio | aminoglycoside |
| aminoguanidina | aminoguanidine |
| aminoimidazol | aminoimidazole |
| aminometilação | aminomethylation |
| aminometiltransferase | aminomethyltransferase |
| aminonicotinamida | aminonicotinamide |
| aminonitrila | aminonitrile |
| aminonucleosídeo | aminonucleoside |
| aminopeptidase | aminopeptidase |
| aminopiridina | aminopyridine |
| aminopirimidina | aminopyrimidine |
| aminopropanol | aminopropanol |
| aminopterina | aminopterin |
| aminoquinolina | aminoquinoline |
| aminorex | aminorex |
| Aminosalicilato | Mesalazine |
| aminoterminal | amino-terminal |
| aminotiazol | aminothiazole |
| aminotriazol | aminotriazole |
| aminoácido | amino acid |
| aminoácidos | amino acid |
| Amintas IV da Macedónia | Amyntas IV of Macedon |
| Amintore Fanfani | Amintore Fanfani |
| aminólise | aminolysis |
| aminóxido | aminoxide |
| amiodarona | amiodarone |
| amioplasia | amyoplasia |
| amiotonia | amyotonia |
| amiotrofia | amyotrophy |
| amiotrófico | amyotrophic |
| Amir Peretz | Amir Peretz |
| amirina | amyrin |
| Amish | Amish |
| amissibilidade | amissibility |
| amissulprida | amisulpride |
| amissível | amissible |
| Amistad | Amistad |
| amistosamente | friendly |
| amistoso | friendly |
| amisulprida | amisulpride |
| amitose | amitosis |
| amitraz | amitraz |
| amitriptilina | amitriptyline |
| amitrol | aminotriazole |
| amitótico | amitotic |
| amizade | friendliness |
| amizade colorida | friendship with benefits |
| Amlikon-Bissegg | Amlikon-Bissegg |
| amlodipina | amlodipine |
| Ammerbuch | Ammerbuch |
| Ammerland | Ammerland |
| Ammerndorf | Ammerndorf |
| Ammerswil | Ammerswil |
| Ammerthal | Ammerthal |
| Ammit | Ammit |
| Ammonoidea | Ammonite |
| Amnat Charoen | Amnat Charoen Province |
| amniocentese | fondness |
| amniorredução | amnioreduction |
| amniorrexe | amniorrhexis |
| amnioscopia | amnioscopy |
| amnioscópio | amnioscope |
| amniota | amniote |
| amniotomia | amniotomy |
| amniócito | amniocyte |
| amniótico | fondness |
| amnésia | amnesia |
| amnésia temporária | blackout |
| amnésico | amnesic |
| amnéstico | amnestic |
| amo | boss |
| Amo-te | I love you |
| amobarbital | amobarbital |
| amocete | ammocoete |
| amodiaquina | amodiaquine |
| Amoeba | Amoeba distributed operating system |
| Amoghasiddhi | Amoghasiddhi |
| amolador de facas | knife grinder |
| amolar | sharpen |
| amolar no couro | strop |
| amolarr | to whetibute |
| amolação | worry |
