Ethanol /ËÉÎ¸ÉnÉl/ , also commonly called ethyl alcohol, drinking alcohol, or simply alcohol is the principal type of alcohol found in alcoholic beverages, produced by the fermentation of sugars by yeasts.It is a neurotoxic psychoactive drug and one of the oldest recreational drugs used by humans.thanol is the systematic name defined by the International Union of Pure and Applied Chemistry (IUPAC) for a molecule with two carbon atoms (prefix eth-), having a single bond between them (suffix -ane), and an attached functional group-OH group (suffix -ol).
habitus. The physical or constitutional characteristics of a person: build, constitution, habit, physique.
Definition of habit for English Language Learners. : 1  a usual way of behaving : something that a person does often in a regular and repeated way. : 2  a strong need to use a drug, to smoke cigarettes, etc. : 3  a piece of clothing worn by members of a religious group.