Tigna. 
Torus. 
Transtra. 
Triclinium. 
Triglyph. 
Trochilus. 
Tympanum. 
Vestibulum. 
door-way leading to the peristyle. Derived from ta, a door¬ 
way, and , a keeper; because on one side of the passage 
were the apartments of the porter. 
The principal timbers of a roof extending across the 
temple: in contradistinction to the trabes, which were 
timbers placed upon the columns or walls in the same 
direction with them. The tigna correspond to our tye-beams. 
The convex member of the Tuscan and Ionic bases. In 
the Attic base there is both an upper and lower torus. 
Horizontal timbers in the roof of a building. The term 
is applied to the transverse beams of a galley which extend 
from side to side and connect the ribs, in the same manner 
as these horizontal pieces connect the axes, or principals, 
of a roof. 
The eating room of a Roman house, so called from the 
Greek word z, signifying a couch ; because in general it 
contained three couches, upon which the ancients used to 
recline at their meals. It is also applied to the couches 
themselves. 
An ornament above the epistylium in a Doric entablature, 
placed over every column; with sometimes one in the 
interval between so placed, and sometimes more. The 
word is derived from the Greek vAvos, an incision or 
channel, of which there were three in this ornament. 
See Scotia. 
The triangular pannel of the fastigium of any building, 
comprehended bet ween its corona and thatofthe entablature. 
The pannels of a framed door were likewise called tympana. 
Part of the andronitis of a Greek house; similar, pro¬ 
bably, to the prostas of the first peristyle or court. The