| acerb | ostrý |
| acerbic | kyselý |
| acerbity | trpkost |
| Acerin | Ježdík obecný |
| aces | esa |
| acetabulum | kloubní jamka |
| acetal | acetal |
| acetaldehyde | acetaldehyd |
| acetamide | acetamid |
| acetaminophen | paracetamol |
| acetanilid | acetanilid |
| acetate | acetát |
| acetazolamide | acetazolamid |
| acetic | octový |
| acetic acid | kyselina octová |
| acetify | octovatět |
| acetone | aceton |
| acetonemia | acetonémie |
| acetonic | acetonový |
| acetonuria | acetonurie |
| acetose | kyselý |
| AceTR | Air core enhanced Turbo Rocket |
| acetyl | acetyl |
| acetylcholine | acetylcholin |
| acetylene | acetylén |
| acetylene tetrachloride | acetylentetrachlorid |
| acetylenic | nenasycený |
| Acetylsalicyl acid | Kyselina acetylsalicylová |
| acetylsalicylic acid | acylpyrin |
| ACF Fiorentina | ACF Fiorentina |
| Achab | Achab |
| Achaea | Achája |
| Achaean | obyvatel starého Řecka |
| Achaean League | Achajský spolek |
| Achaeans | obyvatelé starého Řecka |
| Achaemenes | Achaimenés |
| Achaemenid | Achaimenovec |
| Achaemenid dynasty | Achaimenovci |
| Achaemenid Empire | Achaimenovská říše |
| ache | bolest |
| ached | bolel |
| Acheloos | Achelóos |
| Acheloos River | Achelóos |
| Achelous | Achelóos |
| Achelousaurus | Achelousaurus |
| achene | nažka |
| Achernar | Achernar |
| Acheron | Styx |
| Acherontia atropos | Lišaj smrtihlav |
| aches | touhy |
| Acheulean | Acheuléen |
| Acheulian | Acheuléen |
| achievable | dosažitelný |
| achieve | dosáhnout |
| achieve st. | dosáhnout |
| achieved | dokázaný |
| achievement | úspěch |
| achievements | činy |
| achiever | kdo něčeho dosáhl |
| achieves | dokazuje |
| achieving | dokázání |
| Achilles | Achilles |
| Achilles heel | Achillova pata |
| Achilles tendon | Achillova pata |
| aching | bolavý |
| achingly | bolestivě |
| Achinsk | Ačinsk |
| Achit Nuur | Ačit núr |
| acholia | acholie |
| achondroplasia | achondroplazie |
| achromasia | albinizmus |
| achromatic | achromatický |
