The world of odor.ppt

The world of odor odor An odor ?[‘?ud?] or odour is a volatilized ?[v?l?tilaiz] ?使挥发 chemical compound, generally at a very low concentration, that humans or other animals perceive by the sense of olfaction ?[?lf?k??n]嗅觉 . Odors are also called smells, which can refer to both pleasant and unpleasant odors. Pleasant and unpleasant odors The terms fragrance, scent, and aroma are used primarily by the food and cosmetic industry to describe a pleasant odor, and are sometimes used to refer to perfumes. In contrast, malodorous ?[‘m?l’?ud?r?s] , stench [stent?] , reek, and stink are used specifically to describe unpleasant odors. aroma An aroma is a strong, pleasant smell. e.g. ...the wonderful aroma of freshly baked bread. the aroma of fresh coffeeadj. aromatic fragrance 1) a pleasant smell= scent fragrance of E.g. the rich fragrance of a garden flower 2) a liquid that you put on your body to make it smell pleasant= perfume, scent 3) fragrant flowers scent a pleasant smell that something has= fragrance to give a particular smell to somethinge.g. Honeysuckle and roses scented the air. 　 We scented danger and decided to leave. incense Incense is a substance that is burned for its sweet smell, often as part of a religious ceremony. Unpleasant smell Malodorous Something that is malodorous has an unpleasant smell. (LITERARY) e.g. ...tons of malodorous garbage bags.  ...living in a malodorous London street. Stench ?n [C usually singular]  a very strong bad smell= stink　 the stench of urine something unpleasant that makes you believe that something very bad and dishonest is happeningstench of　 a government filled with the stench of corruption Reek reek of something, usually something unpleasant, means to smell very strongly of it. Your breath reeks of stale cigar smoke. The entire house reeked for a long time. reek of [reek of sth] phr vto seem very clearly to have a particular quality or be connected with something bad　 The whole busine