Archive file. An archive file is a file that is composed of one or more computer files along with metadata. Archive files are used to collect multiple data files together into a single file for easier portability and storage, or simply to compress files to use less storage space. Archive files often store directory structures, error detection and correction information, arbitrary comments, and sometimes use built-in encryption.
Sevin (tm) Insecticide. Sevin is the trade name for a widely used synthetic insecticide containing the active ingredient carbaryl. Carbaryl belongs to the chemical class called carbamates. As insecticides go Sevin is only moderately toxic to mammals and is still widely used in gardens and landscapes.
Sevoflurane is the preferred agent for mask induction due to its lesser irritation to mucous membranes, along with desflurane, it is replacing halothane and forane. Like the other halogenated ethers, it is administered in a mixture of nitrous oxide and oxygen.cetaldehyde is a volatile, flammable and colorless liquid with a pungent, fruity odor commonly used in disinfectants. It is widely used as a chemical intermediate, principally for the production of acetic acid, pyridine and pyridine bases, peracetic acid, pentaerythritol, butylene glycol, and chloral.