From WordNet (r) 2.0 (August 2003) [wn]:
pavilion
n : large and often sumptuous tent [syn: marquee]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Pavilion \Pa*vil"ion\, v. t. [imp. & p. p. Pavilioned; p. pr.
& vb. n. Pavilioning.]
To furnish or cover with, or shelter in, a tent or tents.
[1913 Webster]
The field pavilioned with his guardians bright.
--Milton.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Pavilion \Pa*vil"ion\, n. [F. pavillon, fr. L. pavilio a
butterfly, also, a tent, because spread out like a
butterfly's wings.]
1. A temporary movable habitation; a large tent; a marquee;
esp., a tent raised on posts. "[The] Greeks do pitch their
brave pavilions." --Shak.
[1913 Webster]
2. (Arch.) A single body or mass of building, contained
within simple walls and a single roof, whether insulated,
as in the park or garden of a larger edifice, or united
with other parts, and forming an angle or central feature
of a large pile.
[1913 Webster]
3. (Mil.) A flag, colors, ensign, or banner.
[1913 Webster]
4. (Her.) Same as Tent (Her.)
[1913 Webster]
5. That part of a brilliant which lies between the girdle and
collet. See Illust. of Brilliant.
[1913 Webster]
6. (Anat.) The auricle of the ear; also, the fimbriated
extremity of the Fallopian tube.
[1913 Webster]
7. A covering; a canopy; figuratively, the sky.
[1913 Webster]
The pavilion of heaven is bare. --Shelley.
[1913 Webster]