Cervical lordosis is a curve in the cervical spine, the area of the spine which contains the neck vertebrae. This curve is entirely normal and in fact desirable because it helps to stabilize the head and spine, but when the curve straightens out, becomes too deep, or faces in the wrong direction, it can become a problem.
If something's canonical, it follows a principle or rule, usually in a religious or church-related situation. It is also used in mathematics, music and can refer to something reduced to its most basic form.
Mana is a word found in Austronesian languages meaning power, effectiveness, prestige, where in most cases the power is understood to be supernatural.[1] The exact semantics depends on the language. The concept is a major one in Polynesian cultures. It is part of contemporary Pacific Islander culture.