Nematocyst. Nematocysts . 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 into the victim via a barbed tubule. . 0.76
Venoms. Venom . Poisonous animal secretions forming fluid mixtures of many different enzymes, toxins, and other substances. These substances are produced in specialized glands and secreted through specialized delivery systems (nematocysts, spines, fangs, etc.) for disabling prey or predator. . 0.59
Nematocera. A suborder of insects which belong to the order DIPTERA. They include mosca, mosquito, gnats, black flies, true flies and long-horned flies. . 0.59
Antinematodal Agents. Antinematodal Drugs . Antinematodals . Agents, Antinematodal . Drugs, Antinematodal . Nematocides . Substances used in the treatment or control of nematode infestations. They are used also in veterinary practice. . 0.57
Nematoda. Phasmidia . Secernentea . Sipunculida . A phylum of unsegmented helminths with fundamental bilateral symmetry and secondary triradiate symmetry of the oral and esophageal structures. Many species are parasites. . 0.54
Nematodirus. A genus of roundworms in the family MOLINIEIDAE, whose species are important gastrointestinal parasites of RUMINANTS, especially CATTLE; SHEEP; and GOATS. . 0.49