Zoology one of the four pillars by which the syndendrium is suspended from the umbrella in the Rhizostomidæ.
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1871 T. R. JonesGen. Outl. Animal Kingdom (ed. 4) v. 88 The main trunks of the dependent polypiferous root or stem unite above into a thick quadrate disk (syndendrium), which is suspended by four stout pillars (dendrostyles), one springing from each angle.