central cylinder

American  

noun

Botany.

1. stele.

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Example Sentences

Elongate and engorge a gastraphetes’ central cylinder to the point that a dragon would notice it, however, and it becomes impossible to fire without gripping it more firmly than even the strongest archer could manage.

From Slate • May 7, 2019

The other aisle is more ample, and has its arched openings to the nave composed of four shafts superimposed upon a central cylinder.

From The Cathedrals and Churches of the Rhine by Mansfield, M. F. (Milburg Francisco)

In this the spindles, arranged vertically in the frame, are driven by bands from a central cylinder, and project through apertures in a horizontal bar.

From Inventions in the Century by Doolittle, William Henry

These bands, which may serve to strengthen the central cylinder, have been compared with the netting surrounding the delicate wall of an inflated balloon.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" by Various

The whole central cylinder is called a “fibro-vascular bundle,” and in its perfect form, at least, is found in no plants below the ferns, which are also the first to develop true roots.

From Elements of Structural and Systematic Botany For High Schools and Elementary College Courses by Campbell, Douglas Houghton