(comparative more colloquial, superlative most colloquial) ( 1 linguistics) Denoting a manner of speaking or writing that is characteristic of familiar conversation; informal.  Of or pertaining to a conversation; conversational or chatty.
Cotton dust is often present in the air during cotton handling and processing. Cotton dust may contain many substances including ground-up plant matter, fiber, bacteria, fungi, soil, pesticides, non-cotton matter, and other contaminants that may have accumulated during growing, harvesting, and subsequent processing or storage periods.
Byssinosis is an industrial disease (also known as Brown Lung) that is brought on by breathing in the dust from vegetable fibres such as flax, hemp, cotton dust or sisal while in the workplace. The dust can be retained and cause an asthma type condition in the sufferer.