Definition of nocuous in English:



  • Noxious, harmful, or poisonous.

    • ‘However, the walk up the stairs of the venue to meet the pair saw thoughts of doubt seep into my mind like a nocuous substance, as they may want the mystery that surrounds their bluesy rock and motivation to continue.’
    • ‘Though my habit of driving along looking at cars on the other side of the road could prove to be a bit nocuous.’
    • ‘Spurs are pointed devices secured to a rider's heel which are also designed to provide a nocuous stimulus to an animal.’
    • ‘The antivirus helps to save this information from various nocuous programs, and to reduce up to a minimum risk of infection of a computer.’
    • ‘If we wish to expose ourselves to nocuous activities, it is very much our choice.’
    poisonous, toxic, deadly, virulent
    View synonyms


Mid 17th century: from Latin nocuus (from nocere ‘to hurt’) + -ous.