self-restraint or abstinence, especially in regard to sexual activity; temperance; moderation. 2. Physiology. the ability to voluntarily control urinary and fecal discharge. Also, continency. Origin of continence.
Topmix Permeable is a fast draining concrete pavement solution that rapidly directs stormwater off streets, parking surfaces, driveways and walkways. This minimises the cost and long-term maintenance for local authorities and developers of stormwater management.
Advantages over glasses. Gas permeable (GP) contact lenses are also known as rigid gas permeables (RGPâs). Although todayâs gas permeable lenses are made of a rigid material that is not flexible, they differ greatly from the original hard lenses of yesteryear. Hard contact lenses made of polymethylmethacrylate (PMMA), were introduced in the 1930âs. Considered innovative and technologically advanced for the time, these hard lenses were nearly rendered obsolete by soft lenses that debuted in the early 70âs. A decade later, rigid gas permeable lenses appeared on the scene.