(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.
In Celiac disease, the environmental trigger is gluten. In Rheumatoid Arthritis, there is a strong correlation between cigarette smoke and the onset of diseases. Crystalline silica (quartz) contributes to the development of several systemic autoimmune diseases, including RA and systemic sclerosis.