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| English | Spanish |
| antagonistic effect of toxic substances | efecto antagónico de sustancias tóxicas |
| environmentally harmful or toxic substance A chemical or mixture that may present a risk or injury to health or the environment | sustancias tóxicas |
| notification of the toxic properties of substances | notificación de las propiedades tóxicas de las sustancias |
| synergistic effect of toxic substances | efectos inhibitorios de sustancias tóxicas |
| synergistic effect of toxic substances 1. A state in which the combined effect of two or more substances is greater than the sum of the separate effects. 2. An effect whereby two toxic substance together have more of an impact than anticipated | efectos inhibitorios de sustancias tóxicas |
| toxic substance | sustancias tóxicas |
| very toxic substance | sustancia muy tóxica |