In enumeration. See also per head at per, prep. 1a. An individual animal, esp. a herd animal.
In singular or plural, after a numeral. A unit used in numbering livestock, goods, etc. Cf. head, n.1 10b. Obsolete.
The payment or charging of money based on an assessed total number of people or animals; payment per head; (also) the assessed total itself. In…