While the moment in time at which a particular nucleus decays is unpredictable, a collection of atoms of a radioactive nuclide decays exponentially at a rate described by a parameter known as the half-life, usually given in units of years when discussing dating techniques.
DEFINITION of 'Attachment'. A legal term referring to the action of seizing property in anticipation of a favorable ruling for a plaintiff who claims to be owed money by the defendant. Next Up.
Synonyms: attachment, accessory, appurtenance, adjunct, appendage. These nouns denote subordinate elements added to or associated with another entity. An attachment is a distinct unit or part that adds a function to the thing to which it is connected: The food processor has an attachment for kneading dough.