siphon

noun 0.695

hydroid

noun 0.587

hydrozoan

noun 0.565

ctenophore

noun 0.562

syconium

noun 0.560

syrphid

noun 0.557

sea sponge

noun 0.547

serpulid

noun 0.538

pipefish

noun 0.531

symbiote

noun 0.530

parasitoid

noun 0.520

cnidarian

noun 0.519

jellyfish

noun 0.519

symbiont

noun 0.519

sperm whale

noun 0.518

hydra

noun 0.509

tubeworm

noun 0.508

zoophyte

noun 0.507

choanoflagellate

noun 0.507

sipper

noun 0.507

cyclopoid

noun 0.505

subphylum

noun 0.505

photophore

noun 0.504

coelenterate

noun 0.503

nematocyst

noun 0.502

man-of-war

noun 0.501