IsagelousI*sag"e*lous\ ([imac]*s[a^]g"[e^]*l[u^]s), a. [Is- + Gr. a`gelos information.] Containing the same information; as, isagelous sentences. "The coded message and the original, though appearing entirely unlike, are completely isagelous." --Bacon "The complementary strands have isagelous sequences." --J. D. Watson.