Lexical Definition

‎διάστημα‎ diástēma (dee-as'-tay-mah) interval ^G:N-N
from ‎διΐστημι‎

space.

• an interval

Abbott-Smith

διάστημα, -τος, τό (< διίστημι), [in LXX for רֶוַח, etc.;]
an interval, space: of time (Si, prol.24), Ac 5:7.†

Abbott-Smith References

Liddell-Scott-Jones

διάστημα, ατος, τό,

(διαστῆναι) interval, frequently in Music, [Refs 5th c.BC+]; of Time, δ. τετραετές [Refs 4th c.BC+]; distance, [Refs 1st c.BC+]

__b Geometry texts, radius, κέντρῳ τῷ Α, διαστήματι τῷ ΑΒ, γεγράφθω κύκλος [Refs 3rd c.BC+]; of a sphere, [Refs 4th c.BC+]
__c aperture, ἀγγεῖον ἔχον δ. μέγα [Refs 4th c.BC+]; τὰ δ. τῆς χειρὸς τῶν δακτύλων the spaces between the fingers, [Refs 4th c.BC+]
__2 in Medicine texts, diastasis, of bones, [Refs 5th c.BC+]
__3 difference, τῶν ἡδονῶν μεγάλα τὰ δ. [Refs 3rd c.BC+]
__4 ratio, [Refs 4th c.BC+]
__5 in Aristotle's symbolism, conjunction of two terms, APr.[Refs]
__6 extension, dimension, χρόνος κινήσεως δ. [Refs 4th c.BC+]; of Space, [Refs 4th c.BC+]; ὧν πρότερον διάστημα ἐνειστήκει whose extension (i.e. surface) it (the εἴδωλον) formerly occupied, [Refs 4th c.BC+]
__II distinction of style, [Refs 3rd c.AD+]