Source : Webster's Revised Unabridged Dictionary (1913)

Synapta \Syn*ap"ta\, n. [NL., fr. Gr. ? fastened together; sy`n
   with + ? to fasten.] (Zo["o]l.)
   A genus of slender, transparent holothurians which have
   delicate calcareous anchors attached to the dermal plates.
   See Illustration in Appendix.