ψευδοδίπτερος
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
English (LSJ)
ον,
A false dipteral, of a temple in which there is only one row of columns along the sides, though there is space left for two, Vitr.3.2.1.