hydrocarbon wax
31Oil tanker — Supertanker redirects here. For the aerial firefighting aircraft, see Evergreen 747 Supertanker. The commercial oil tanker AbQaiq, in ballast Class overview Name …
32technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
33carboxylic acid — Chem. any organic acid containing one or more carboxyl groups. [1900 05; CARBOXYL + IC] * * * Any organic compound with the general chemical formula ―COOH in which a carbon (C) atom is bonded to an oxygen (O) atom by a double bond to make a… …
34chemoreception — chemoreceptive /kee moh ri sep tiv, kem oh /, adj. /kee moh ri sep sheuhn, kem oh /, n. the physiological response to chemical stimuli. [1915 20; CHEMO + RECEPTION] * * * Sensory process by which organisms respond to external chemical stimuli, by …
35art conservation and restoration — Maintenance and preservation of works of art, their protection from future damage, deterioration, or neglect, and the repair or renovation of works that have deteriorated or been damaged. Research in art history has relied heavily on 20th and… …
36Perfluorooctanoic acid — IUPAC name pentadecafluorooctanoic acid …
37Gas lighting — For other uses, see Gaslight (disambiguation). Gas lighting is production of artificial light from combustion of a gaseous fuel, including hydrogen, methane, carbon monoxide, propane, butane, acetylene, ethylene, or natural gas. Before… …
38Topical — This article is about topical medications. For other uses, see Topic (disambiguation). In medicine, a topical medication is applied to body surfaces such as the skin or mucous membranes such as the vagina, anus, throat, eyes and ears. Many… …
39Well logging — Gamma ray logging Spontaneous potential logging Resistivity logging Density logging Sonic logging Caliper logging Mud logging LWD/MWD v · …
40Cosmoline — is the genericized trademark for a generic class of rust preventatives, typically conforming to MIL C 11796C Class 3, that are a brown colored wax like mass; have a slight fluorescence; and have a petroleum like odor and taste (as detected when… …
