Lexical Definition

‎σεμίδαλις‎ semídalis (sem-id'-al-is) fine flour G:N-F
probably of foreign origin

fine flour.

Usage: 3 forms in 60 verses

Abbott-Smith

σεμίδαλις, -εως, ἡ [in LXX chiefly for סֹלֶת ;]
fine wheaten flour: Re 18:13.†

Abbott-Smith References

Book Refs
Revelation 18:13

Liddell-Scott-Jones

σεμίδαλις [], εως

or ιος (εος in [Refs 4th c.BC+], , the finest wheaten flour, [Refs 5th c.BC+], Acut.(Sp.)[NT+5th c.BC+]; σεμιδάρεως is an error in [Refs 1st c.AD+]:—hence σεμῐδᾱλίτης [] ἄρτος, , bread made of σεμίδαλις, [Refs 5th c.BC+]:—also σεμιδάλιν (={-ιον}), τό, [Refs 3rd c.AD+] (Cf. Assyr. samīdu, Aramaic semīdā in same sense.)

LSJ Scripture Refs: LXX.Gen.18.6Rev.18.13