Synaptidae
plural noun
Syn·ap·ti·dae
-təˌdē
: a widely distributed family (order Apoda) of sea cucumbers lacking a respiratory tree, having the water-vascular system greatly reduced, and being mostly littoral but including some forms found in very deep waters
Word History
Etymology
New Latin, from Synapta, type genus (from Greek synaptē, feminine of synaptos joined together) + -idae