Top definition. BLUF. An acronym for Bottom Line Up Front that is frequently used in informal military correspondence and internal/informal corporate e-mails to cover the main points of an e-mail so the reader can quickly understand what the e-mail is saying before reading the whole, lengthy e-mail. RE:urbandictionary.com.
Glycerol /ËÉ¡lÉªsÉrÉl/ (also called glycerine or glycerin; see spelling differences) is a simple polyol (sugar alcohol) compound. It is a colorless, odorless, viscous liquid that is widely used in pharmaceutical formulations. Glycerol has three hydroxyl groups that are responsible for its solubility in water and its hygroscopic nature. The glycerol backbone is central to all lipids known as triglycerides.
Now here's what's confusing about glycerin. The most commonly stated claim about glycerin is that it helps the skin attract and retain moisture. Then the next thing that you'll read is that glycerin draws moisture from your own dermis up to your epidemis. Your skin might feel moisturized, but you have just borrowed from Peter to pay Paul and ultimately it will get dryer.