Relating to, resembling, or situated on an axis
Belonging to the axis of the body, or to the axis of any appendage or organ
In the same direction as the axis, parallel to the axis.
oriented close to the axis running through the centre of a cyclohexane ring, as opposed to equatorial. See w:Axial bond.
A plane parallel to the surface of a tooth.
A flight feather that appears between the primaries and secondaries on some birds.
Such that each complementary region is irreducible, the boundary of each complementary region is incompressible by disks and monogons in the complementary region, and no leaf is a sphere or a torus bounding a solid torus in the manifold.
Necessary.
Necessary for survival but not synthesized by the organism, thus needing to be ingested.
Being in the basic form; showing its essence.
Really existing; existent.
Very important; of high importance.
Having the nature of essence; not physical.
Idiopathic.
A necessary ingredient.
A fundamental ingredient.