porta principalis dextra
[Co].
Latin name for the gate at the right-hand end of the main transverse street (
via principalis
) of a Roman fort or camp as viewed from the front of the headquarters building, or from the general's tent.
porta principalis sinistra
[Co].
Latin name for the gate at the left-hand end of the transverse street (
via principalis
) of a Roman fort or camp as viewed from the front of the headquarters building, or from the general's tent.
Portchester ware
[Ar].
Type of late Saxon pottery manufactured on the coast of central southern England.
port-hole slab
[Co].
A distinctive kind of entrance to a burial chamber, often in a chambered tomb, comprising either a single stone or a pair of stones set side by side, in which a round or sometimes square access hole has been cut. Where a pair of stones is used each has a cut-out in one side which when placed together form the port-hole. Some of the best examples are known amongst
COTSWOLD–SEVERN
long barrows of western Britain and the dolmens of the northwest Caucasus in southern Russia.
portico
[Co].
An entrance porch with a colonnade.
portway
[De].
A road which led to a market town. See
PORT
.
Posidonius
[Na].
Philosopher and historian, born
c.
135 bc in Apamea, Syria, but afterwards settling in Rhodes. His principal work, a
History
, occupied 52 books but is no longer extant. Fragments do, however, survive in the borrowings of later writers including Caesar , Strabo , Diodorus , and Athenaeus , whose observations on the Celts are largely based upon Posidonius' ethnography. Posidonius died in
c.
50 bc.