| Terms for subject Environment (23592 entries) |
| riesgo tolerable | acceptable fire risk | |
| riesgos | risk (The expected number of lives lost, persons injured, damage to property and disruption of economic activity due to a particular natural phenomenon, and consequently the product of the probability of occurrence and the expected magnitude of damage) | |
| riesgos | risk | |
| riesgos | risks | |
| riesgos ambientales para la salud | environmental health hazard | |
| riesgos de contaminación | pollution risk (Probability of harm to human health, property or the environment posed by the introduction of an undesirable substance into the ecosystem) | |
| riesgos de contaminación | pollution risk | |
| rinocerontes | rhinoceroses | |
| rinocerontes | rhinos | |
| ritmo de evacuación de la materia | rate of disposal per specific period | |
| ritmos biológicos | biorhythm (A cyclically recurring pattern of physiological states in an organism or organ, such as alpha rhythm or circadian rhythm; believed by some to affect physical and mental states and behaviour) | |
| ritmos biológicos | biorhythm | |
| rizosfera | rizosphere | |
| robinia | honey locust | |
| roble albar | sessile oak | |
| roble carvallo | common oak | |
| roble carvallo | pedunculate oak | |
| roble fresnal | pedunculate oak | |
| robledal de la estepa eurosiberiana | Euro-Siberian steppe oak wood | |
| robles | oak (Any tree of the genus Quercus in the order Fagales, characterized by simple, usually lobed leaves, scaly winter buds, a star-shaped pith, and its fruit, the acorn, which is a nut; the wood is tough, hard, and durable, generally having a distinct pattern) |