English word poisonous comes from English poison, English -ous
| Dictionary entry | Language | Definition |
|---|---|---|
| poison | English (eng) | (transitive) To cause someone to hate or to have unfair negative opinions. (transitive) To cause something to become much worse. (transitive) To pollute; to cause some part of the environment to become poisonous. (transitive) To use poison to kill or paralyse somebody (informal) A drink; liquor.. A substance that is harmful or lethal to a living organism.. Something that harms a person or thing. |
| -ous | English (eng) | (chemistry) Used in chemical nomenclature to name chemical compounds in which a specified chemical element has a lower oxidation number than in the equivalent compound whose name ends in the suffix -ic. For example sulphuric acid (H2SO4) has more oxygen atoms per molecule than sulphurous acid (H2SO3). See Inorganic nomenclature.. Used to form adjectives from nouns, to denote possession or [...] |
| poisonous | English (eng) | (of an animal) Inedible due to containing poison; poisonous to eat. Containing sufficient poison to be dangerous. |