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.
4 n-count In computing, an attachment is a file which is attached separately to a message that you send to someone. When you send an e-mail you can also send a sound or graphic file as an attachment. Translation English Cobuild Collins Dictionary.