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.
Definition of heir. 1  1 : one who receives property from an ancestor : one who is entitled to inherit property was her father's sole heir. 2  2 : one who inherits or is entitled to succeed to a hereditary rank, title, or office heir to the throne.