Rhabdocoela \Rhab`do*coe"la\ (r[a^]b`d[-o]*s[=e]"l[.a]), n. pl. [NL., fr. Gr. "ra`bdos a rod + koi^los hollow.] (Zool.) A suborder of Turbellaria including those that have a simple cylindrical, or saclike, stomach, without an intestine. [1913 Webster]