Definify.com

Webster 1913 Edition

Adj.

[

Octo-

+ Gr. [GREEK] a pillar: cf. F.

octostyle

(Arch.)

Having eight columns in the front; – said of a temple or portico. The Parthenon is

octostyle

, but most large Greek temples are hexastyle. See

–

Noun.

An octostyle portico or temple.

Noun.

[Gr. eight, and style.] In ancient architecture, the face of an edifice adorned with eight columns, or a range of eight columns.

octostyle ‎(plural octostyles)

(architecture) A temple or portico with eight columns in front.
The Parthenon in Athens is an octostyle, but most large Greek temples are hexastyle.