rachis
Yes
A typical wing feather consists of a central, stiff shaft with the softer vanes on each side. The leading edge of the feather during flight is called the outer vane. The opposite vane is wider than the outer vane and is referred to as the inner vane.
A cylinder is the central working part of a reciprocating engine, the space in which a piston travels.
An inclined plane wrapped around a central cylinder to form a spiral is called a screw or a bolt.
It Has 4 pistons A cylinder is the central working part of a reciprocating engine, the space in which a piston travels.
The manifold in a car passes air from one central source to each cylinder opening on the cylinder head.
linked to a central processing unit of a computer
the Rachis is the central part of the feather, Barbs branch of the Rachis, Barbules branch off the Barbs and Barbicels (Hooks) branch off the Barbsbarbules
The vascular bundle in the shape of a single central cylinder in a root is called a monocot root. This arrangement is characteristic of monocotyledonous plants, where the xylem and phloem tissues are organized in a ring around the central pith.
Is a feather solid
well.. a dappled feather is a feather that has been well, dappled!
The book was light as a feather