(·v & ·adj) Fixed foundation; established basis.
II. Firmament (·v & ·adj) The region of the air; the sky or heavens.
III. Firmament (·v & ·adj) The orb of the fixed stars; the most rmote of the celestial spheres.
From the Vulgate firmamentum, which is used as the translation of the Hebrew raki'a. This word means...
Easton's Bible Dictionary
In Scripture the word denotes an expanse, a wide extent; for such is the signification of the Hebrew...
William Smith's Bible Dictionary