The main stem or central part about which organs or plant parts such as branches are arranged
An alliance or coalition.
The second cervical vertebra of the spine
An imaginary line around which an object spins (an axis of rotation) or is symmetrically arranged (an axis of symmetry).
An imaginary, visualized plane separating two morphologically similar parts of an organism
A deer native to Asia, of species Axis axis.
A form of classification and descriptions of mental disorders or disabilities used in manuals such as the DSM (Diagnostic and Statistical Manual of Mental Disorders)
A fixed one-dimensional figure, such as a line or arc, with an origin and orientation and such that its points are in one-to-one correspondence with a set of numbers; an axis forms part of the basis of a space or is used to position and locate data in a graph (a coordinate axis)
The strengthened vein down the middle of a flower petal or simple leaf or leaflet.
The continuation of the petiole of a pinnately compound leaf around which the leaflets attach.