Английский словарь Webster - fixture (3)

(n.) Anything of an accessory character annexed to houses and lands, so as to constitute a part of them. This term is, however, quite frequently used in the peculiar sense of personal chattels annexed to lands and tenements, but removable by the person annexing them, or his personal representatives. In this latter sense, the same things may be fixtures under some circumstances, and not fixtures under others.