furan - a colorless toxic flammable liquid used in the synthesis of nylon. furane, furfuran. organic compound - any compound of carbon and another element or a radical. nitrofuran - derivative of furan used to inhibit bacterial growth.
precarious adjective. âº in a âdangerous âstate because of not being âsafe or not being âheld in âplace âfirmly: The âlorry was âlodged in a very precarious way, with âits âfront âwheels âhanging over the âcliff.
Definition of luxury for English Language Learners. : 1  a condition or situation of great comfort, ease, and wealth. : 2  something that is expensive and not necessary. : 3  something that is helpful or welcome and that is not usually or always available.