[Gk. nema, nematos, thread + kyst, bladder] A threadlike stinger, containing a poisonous or paralyzing substance, found in the cnidocyte of cnidarians.

1875, from nemato-, comb. form of Greek nema, nematos "thread" (genitive nematos), from stem of nein "to spin" (see needle (n.)) + cyst.

Older name for a cnidocyst.

(Gk: nema= thread; nematode= thready thing; cystis= bladder) a cyst like structure of nettle cells in cnidaria, comprising a poisonous barbed thread discharged on touch.

A minute capsule containing an ejectable thread with a stinger; found in certain coelenterates (corals, hydras, jellyfish).

a specialized cell in the tentacles of cnidarians (Phylum Cnidaria, jellyfish, corals, and anemones) and ctenophores (Phylum Ctenophora, comb jellies). Each nematocyst typically contains a barbed and/ [..]

A double-walled capsule found in jellyfish and other Cnidaria whose functions include prey capture, defense, Locomotion, and attachment. Nematocysts contain toxic Cnidarian Venoms which are injected i [..]

cellular organelle common in polyps; may be adopted by their predators; a sac containing a long coiled tube with Poison "harpoon" tip ejected by water pressure to trap prey neoteny

Cnidarian stinging cell. As found in Anemones and Jellyfish.

Stinging cells found on jellyfish and anemones. The “sting” is caused by a coiled, thread-like tube that is propelled outward for defense and to capture food.

in cnidarians, a stinging cell that is used to inject a toxin into prey

(biology) A capsule, in certain cnidarians, containing a barbed, threadlike tube that delivers a paralyzing sting * journal=Proceedings of the Literary and Philosophical Society of Liverpool|volume [..]