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Pronunciation varies by accent · noun
(biology) A capsule, in certain cnidarians, containing a barbed, threadlike tube that delivers a paralyzing sting.
Often one sees, on surface view, a distinctly rounded vacuole, occupying a position in the cell occupied in others by a large nematocyst.
The young nematocyst decreases in size and becomes coarsely granular, the granules arranging themselves in a spiral line close under the external membrane.
Nematocyst discharge is another example of the Rubicon principle – it either fires or it does not.
Use nematocyst when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nematocyst means (biology) A capsule, in certain cnidarians, containing a barbed, threadlike tube that delivers a paralyzing sting.
Common synonyms include cnida, cnidocyst, cnidocyte.
The opposite depends on the specific sense.
Often one sees, on surface view, a distinctly rounded vacuole, occupying a position in the cell occupied in others by a large nematocyst.
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