1 The highest monthly average temperature in Lake Las Vegas for July is 95 degrees. 2  The lowest monthly average temperature in Lake Las Vegas for December is 44 degrees.  The most monthly precipitation in Lake Las Vegas occurs in October with 0.5 inches.
Phototoxicity, also called photoirritation, is a chemically induced skin irritation, requiring light, that does not involve the immune system.It is a type of photosensitivity.hototoxicity, also called photoirritation, is a chemically induced skin irritation, requiring light, that does not involve the immune system.
Wiktionary(0.00 / 0 votes)Rate this definition: Freebase(0.00 / 0 votes)Rate this definition: Phototoxicity is a chemically induced skin irritation requiring light. The skin response resembles an exaggerated sunburn. The involved chemical may enter into the skin by topical administration or it may reach the skin via systemic circulation following ingestion or parenteral administration.