| ABC |
| Abel Moschus |
| Abies Canadensis |
| Abies Nigra |
| Abies Procera (Noble Fir) |
| Abroma Augustifolia |
| Abrotanum (Artemisia Abro) |
| Abrus Precatorius (Jequirity) |
| Absinthium (Artemisia Absinth) |
| Acacia Erioloba (Mokala) |
| Acacia Nilotia |
| Acalypha Indica |
| Acanthaster planci (Starfish) |
| Acarus Siro (storage mite) |
| Accipiter Gentilis (Goshawk) |
| Accipiter Nisus (Sparrowhawk) |
| Acer Circinatum |
| Acer Palm (Japanese Maple) |
| Acer Saccharum (Sugar Maple) |
| Acetaldehyde |
| Acetanilidum |
| Aceticum Acid (Acid Aceticum) |
| Acetominophen (Paracetamol) |
| Acetone |
| Acetylcholine |
| Acherontia Atropos (Death's-head hawk moth) |
| Achillea Millefolium (Millefolium) |
| Achyranthes Aspera |
| Acid Aceticum (Aceticum Acid) |
| Acid Arsenicum (Arsenicum Acid, Arsenicum Alb, Arsen Oxide) |
| Acid Benzoicum (Benzoicum Acid) |
| Acid Boricum (Boricum Acid) |
| Acid Butyricum (Butyricum Acid) |
| Acid Camphoric (Camphoric Acid) |
| Acid Carbolicum (Carbolicum Acid) |
| Acid Chromium (Chromium Acid, Chrom Anhyd, Chrom Triox) |
| Acid Chrysophanicum (Chrysophanicum Acid, Chrysarobinum) |
| Acid Citric (Citric Acid) |
| Acid Fluoricum (Fluoricum Acid, Hydrofluoric Acid) |
| Acid Folic (Folic Acid, Vitamin B9) |
| Acid Formicum (Formic Acid, Formica Rufa) |
| Acid Fumaric (Fumaric Acid) |
| Acid Gallic (Gallic Acid) |
| Acid Hippuricum (Hippuricum Acid) |
| Acid Hyaluronic (Hyaluronic Acid) |
| Acid Hydrobrom (Hydrobrom Acid) |
| Acid Hydrocyanicum (Hydrocyanicum Acid) |
| Acid Ketoglutaric(Ketoglutaric Acid, alpha-KG) |
| Acid Lacticum (Lactic Acid) |
| Acid Malic (Malic Acid) |
| Acid Molybdic (Molybdic Acid, Molybdenum Trioxide) |
| Acid Muriaticum (Muriaticum Acid, Hydrochloric Acid) |
| Acid Nicotinic (Nicotinic Acid) |
| Acid Nitricum (Nitricum Acid) |
| Acid Nitromuriaticum (Nitromuriaticum Acid) |
| Acid Oroticum (Orotic Acid) |
| Acid Oxalicum (Oxalicum Acid) |
| Acid Pantothenic (Pantothenic Acid,Vitamin B5) |
| Acid Phosphoricum (Phosphoricum Acid, Acid Phos) |
| Acid Picricum (Picricum Acid) |
| Acid Rhizopus (Rhizopus Acid) |
| Acid Salicylicum (Salicylic Acid) |
| Acid Sarcolacticum (Sarcolacticum Acid) |
| Acid Succinicum (Succinicum Acid) |
| Acid Sulphuricum (Acid Sulph, Sulphuric Acid) |
| Acid Sulphurous (Sulphurous Acid) |
| Acid Tannicum (Tannic Acid) |
| Acid Uricum (Uric Acid) |
| Acid Valerian (Valerian Acid) |
| Acidophilus (Lactobacillus Acidophilus) |
| Acinonyx Jubatus (Cheetah) |
| Acne Bacillus |
| Aconite (Aconitum Napellus) |
| Aconitinium |
| Aconitum Ferox |
| Aconitum Japonicum |
| Aconitum Lycotonum |
| Actaea Rac (Cimicifuga Rac) |
| Actaea Spic |
| Actinidia chinensis (Kiwifruit) |
| Actinium Nit |
| Actinomyces |
| Adalia Bipunctata (Ladybug) |
| Adamas (Diamond Dust) |
| Adelie Penguin (Pygoscelis Adeliae) |
| Adeno Inf Vir |
| Adenovirus |
| Adeps Boae (Boa Constrictor) |
| Adeps Lanae |
| Adeps Suillus |
| Adipose Tissue |
| Adlumina Fungosa |
| Adonis Vernalis |
| Adrenal Cortex (Cortin) |
| Adrenal Gland (Whole) |
| Adrenal Medulla |
| Adrenaline (Epinephrine) |
| Adulaire (Adulare) |
| AEE |
| Aegopodium Pod |
| Aepyceros melampus (Impala) |
| Aepyornis maximus (Elephant bird egg) |
| Aesculus Glabra |
| Aesculus Hippocastanum |
| Aethereum |
| Aethiops Min (Aethiops Ant) |
| Aethusa Cynapium |
| Aflatoxin (Aphlatoxin, Mycotoxin mixed) |
| Agapornis Roseicolli (Lovebird) |
| Agaricus Bulb |
| Agaricus Emet |
| Agaricus Muscarius |
| Agaricus Stercorarius |
| Agathis Australis (Kauri) |
| Agave Americana |
| Agave Tequila |
| AGE |
| Agkistrodon Acutus |
| Agkistrodon Piscivorus (Toxicophis Pugnax) |
| Agnus Castus |
| Agraphis Nutans |
| Agrimony |
| Agromonia Eupatoria |
| Agropyron |
| Agrostemma Githaso |
| Ailanthus Glandulosa |
| Ajuga Reptans |
| Alauda Arvensis (Skylark) |
| Albatross (Wandering, Diomedea Exulans) |
| Albatross(Black-browed,Diomedea Melanophris) |
| Albite (Feldspar) |
| Albumen Ovi |
| Alcedo atthis (Kingfisher) |
| Alchemilla Vulgaris |
| Alcoholus (Ethylicum) |
| Aldehyde (see Formaldehyde) |
| Aldosterone |
| Aletris Farinosa |
| Alfalfa (Medicago Sat) |
| Alligator (Mississippi) |
| Allium Cepa |
| Allium Sat |
| Alloxanum |
| Alnus Rubra |
| Aloe Ferox |
| Aloe Socotrina |
| Aloe Vera |
| Alpaca Milk (see Lac Pacos) |
| Alpha-KG (Acid Ketoglutaric,Ketoglutaric Acid) |
| Alstonia Scholaris |
| Alternaria |
| Althaea Off (Marshmallow) |
| Alumen (Pot Alum, Alum) |
| Alumina (Aluminium Oxide) |
| Aluminium Acet |
| Aluminium Brom |
| Aluminium Fluor |
| Aluminium Iodatum |
| Aluminium Met |
| Aluminium Nit |
| Aluminium Oxide (Alumina) |
| Aluminium Phos |
| Aluminium Sil |
| Aluminium Sulph |
| Amalgam (Dental) |
| Amaranth (E123) |
| Amber (Succinum) |
| Ambra Grisea |
| Ambrosia Artem (Ragweed) |
| American Scallop (Venus Merc) |
| Americium (243) Mur |
| Americium (243) Nit |
| Americum (241) Mur |
| Amethyst |
| Ammi Visnaga |
| Ammon Acet |
| Ammon Benz |
| Ammon Brom |
| Ammon Carb |
| Ammon Caust |
| Ammon Dor |
| Ammon Iod |
| Ammon Mur |
| Ammon Nit |
| Ammon Phos |
| Ammon Pic |
| Ammon Sulph |
| Ammon Val |