| Subject | Spanish | English |
| chem. | aceite artificial de almendras amargas | artificial almond oil |
| chem. | aceite de almendras amargas | bitter almond oil |
| bot. | achicoria amarga Cichorium intybus | succory |
| nat.sc., agric. | achicoria amarga | wild succory (Cichorium intybus L.) |
| bot. | achicoria amarga Cichorium intybus | wild succory |
| bot. | achicoria amarga Cichorium intybus | wild chicory |
| nat.sc., agric. | achicoria amarga | wild chicory (Cichorium intybus L.) |
| bot. | achicoria amarga Cichorium intybus | chicory |
| agric. | almendra amarga | bitter almond |
| agric. | almendro amarga | bitter almond tree (Prunus amygdalus var. amara) |
| agric. | almendro amargo | bitter almond tree (Prunus dulcis var. amara, Prunus amygdalus var. amara) |
| bot. | almendro amargo Prunus amygdalus var. amara | bitter almond |
| bot. | almendro de fruto amargo Prunus amygdalus var. amara | bitter almond |
| med. | altramuz amargo | bitter lupin |
| agric. | altramuz blanco amargo | bitter white lupin (Lupinus albus) |
| agric. | amargo aromático | aromatic bitter |
| food.ind. | bebida espirituosa de sabor amargo, amer o bitter | bitter-tasting spirit drink or bitter |
| nat.res., agric. | calabacilla amarga | squirting cucumber (Ecballium elaterium, Echbalium elaterium A. Rich) |
| bot. | calabacilla amarga Ecballium elaterium | squirting cucumber |
| bot. | caria amarga Carya amara, cordiformis | bitter hickory |
| bot. | caria amarga Carya amara, cordiformis | bitternut |
| food.ind. | chocolate amargo | bitter chocolate |
| nat.res., agric. | chombrillo amargo | squirting cucumber (Ecballium elaterium, Echbalium elaterium A. Rich) |
| agric. | cohombrillo amargo | bitter cucumber (Momordica charantia) |
| agric. | cohombrillo amargo | balsam pear (Momordica charantia) |
| bot. | cohombrillo amargo Ecballium elaterium | squirting cucumber |
| nat.sc., agric. | corazón amargo | Bitter Pit |
| agric. | corazón amargo | bitter pit |
| bot. | cuasia amarga Quassia amara | bitter quassia |
| life.sc., agric. | cuasia amarga | quassia (Quassia amara) |
| bot. | cuasia amarga Quassia amara | Surinam quassia |
| horticult. | esencia de naranja amarga | bitter orange oil |
| agric. | extracto de cuasia amarga | Quassia amara extract (Quassia amara) |
| med. | gránulos amargos de van Schoenlein | granulated achor SCH. |
| nat.sc., agric. | hicoria | jicoria amarga | bitternut hickory (Carya amara, Carya cordiformis) |
| nat.sc., agric. | hicoria | jicoria amarga | swamp hickory (Carya amara, Carya cordiformis) |
| nat.sc., agric. | hicoria | jicoria amarga | bitternut (Carya amara, Carya cordiformis) |
| nat.sc., agric. | hicoria | jicoria amarga | bitter pignut (Carya amara, Carya cordiformis) |
| nat.sc., agric. | hicoria | jicoria amarga | bitter hickory (Carya amara, Carya cordiformis) |
| bot. | hinojo amargo Foeniculum vulgare | bitter fennel |
| bot. | hinojo amargo Foeniculum vulgare | common fennel |
| bot. | hinojo amargo Foeniculum vulgare | fennel |
| gen. | Las hojas mas pequeñas de los nabos silvestres son las menos amargas | The smaller leaves of turnip greens are the least bitter |
| agric. | leche amarga | bitter milk |
| bot. | lima amarga Citrus aurantifolia | sour lime |
| bot. | lima amarga Citrus aurantifolia | true lime |
| bot. | lima amarga Citrus aurantifolia | lime |
| bot. | lima amarga Citrus aurantifolia | lime tree |
| agric. | lúpulo amargo | bitter hops |
| nat.sc., agric. | manchas amargas | bitter pit |
| nat.sc., agric. | manchas amargas | Bitter Pit |
| nat.sc., agric. | mastuerzo amargo | hairy bittercress (Cardamine hirsuta L.) |
| nat.sc., agric. | mastuerzo amargo | large-flowered bittercress (Cardamine amara L.) |
| agric. | naranja amarga | Seville orange |
| bot. | naranja amarga Citrus myrtifolia | chinotto orange |
| agric. | naranja amarga | bitter orange |
| agric. | naranja amarga | sour orange |
| agric. | naranja amarga | bigarade |
| bot. | naranja amarga Citrus myrtifolia | chinotto |
| agric. | naranjas amargas | bitter oranges |
| agric. | naranjas amargas | Seville oranges |
| nat.res., agric. | naranjo amargo | myrtle leaf orange |
| agric. | naranjo amargo | sour orange tree (Citrus aurantium) |
| agric. | naranjo amargo | Seville orange tree (Citrus aurantium, Citrus aurantium var.bigaradia) |
| bot. | naranjo amargo Citrus aurantium, vulgaris | bitter orange tree |
| agric. | naranjo amargo | bitter orange tree (Citrus aurantium) |
| bot. | naranjo amargo Citrus aurantium, vulgaris | Seville orange tree |
| nat.res., agric. | naranjo amargo | chinotto |
| bot. | naranjo amargo Citrus aurantium, vulgaris | sour orange tree |
| bot. | nogal americano de nuez amarga Carya glabra, porcina | broom hickory |
| bot. | nogal americano de nuez amarga Carya glabra, porcina | pignut hickory |
| agric. | pepino amargo | bitter cucumber (Momordica charantia) |
| agric. | pepino amargo | balsam pear (Momordica charantia) |
| agric. | podredumbre amarga de la cereza | bitter rot of cherry (Gloeosporium fructigenum, Glomerella cingulata) |
| pest.contr. | podredumbre amarga de la fruta Glomerella cingulata | bitter rot of cherries |
| nat.sc., agric. | podredumbre amarga de la fruta | bitter rot of cherry (Gloeosporium fructigenum, Glomerella cingulata) |
| agric. | rot amargo | bitter rot |
| agric., chem. | sabor amargo | bitter flavour |
| med. | sabor amargo | picrogeusia |
| chem. | sal amarga | bitter salt |
| bot. | sauce amargo de Chile Salix humboldtiana, S. chilensis | Chilean willow |
| agric. | semilla amarga | bitter seed |
| agric. | semilla de altamuz blanco amargo | bitter white lupin seed |
| agric. | semilla de variedades amargas de altramuz blanco | bitter white lupin seed |
| agric. | substancias amargas | bitter substances |
| environ. | sustancia amarga | bitter principle |
| agric. | tortas de almendras amargas | bitter almond cake |
| gen. | una verdura verde y amarga | a bitter green vegetable |
| agric. | variedad amarga | bitter variety |
| agric. | vino aromatizado amargo | bitter aromatized wine |
| bot. | yuca amarga Manihot esculenta, Manihot utilissima | yuca |
| bot. | yuca amarga Manihot esculenta, Manihot utilissima | mandioca |
| bot. | yuca amarga Manihot esculenta, Manihot utilissima | cassava |
| bot. | yuca amarga Manihot esculenta, Manihot utilissima | manioc |
| nat.sc. | zacate amargo | carpet grass (Paspalum compressum) |
| nat.sc. | zacate amargo | savanna grass (Paspalum compressum) |
| nat.sc. | zacate amargo | savannah grass (Paspalum compressum) |
| bot. | zacate amargo Paspalum compressum | savannah grass |
| bot. | zacate amargo Paspalum compressum | carpet grass |