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.
Attachment is not just a connection between two people; it is a bond that involves a desire for regular contact with that person and the experience of distress during separation from that person. 1  This plays a particularly important role during childhood as it causes children and their caregivers to seek proximity.