This change, which is called eosinophilia, indicates the production of a noxious substance in the blood.

Sulphuretted hydrogen is a noxious impurity, and its complete removal from the gas is usually imposed by parliament.

Muller to include cases of mutual resemblance between two or more noxious species inhabiting the same area.

the damping off of seedlingsand in saturated soils not only are the roots and root-hairs killed by asphyxiation, but the whole course of soil fermentation is altered, and it takes time to sweeten such by draining, because not only must the noxious bodies be gradually washed out and the lost salts restored, but the balance of suitable bacterial and fungal life must be restored.

Poisonous or noxious animals usually have some special advertising attribute, sometimes the display of conspicuous coloration, as in the skunk; sometimes the emission of sound as in the rattlesnake; sometimes a combination of the two, as in the common porcupine and the large black scorpions of Africa and India.