Itching can be prevented only to the extent that the underlying cause(s) of the itching sensation can be prevented. For example, careful use of sunscreen products can prevent the itching associated with sunburn. Keeping well hydrated and using moisturizers can prevent the itch associated with dry skin.
brownout (plural brownouts) 1  A period of low alternating current line voltage, causing a reduction in illumination When demand for electricity exceeds the available supply, a brownout occurs. 2  Temporary dimming of vision, usually with a brown hue and accompanied by loss of peripheral vision or tunnel vision. On rising suddenly from her chair she experienced a brownout and had to sit down again quickly. Temporary closing of a fire station, usually due to budget restrictions.
A brownfield is an abandoned, idled, or underused industrial or commercial facility in which redevelopment is burdened by real or potential environmental contamination.* Typical businesses that leave behind such contaminated sites include: Railroads.