Source : Webster's Revised Unabridged Dictionary (1913)

Synapticula \Syn`ap*tic"u*la\, n.; pl. {Synapticul[ae]}. [NL.,
   dim. from Gr. ? fastened together.] (Zo["o]l.)
   One of numerous calcareous processes which extend between,
   and unite, the adjacent septa of certain corals, especially
   of the fungian corals.