al·pha·nu·mer·ic

/ˌalfən(y)o͞oˈmerik/

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adjective

adjective: alpha-numeric

consisting of or using both letters and numerals.

"alphanumeric data"

noun

noun: alpha-numeric

a character that is either a letter or a number.

Origin

Semblance comes from the 14th-century French word for "resemble," and it is a noun for things that look one way on the outside but are very different on the inside. A popular combination is to say that a person or place has the "semblance of order," when, underneath, everything is out of control.

lim·i·nal

/ˈlimənl/

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adjective

TECHNICAL

1. 1.

   relating to a transitional or initial stage of a process.
2. 2.

   occupying a position at, or on both sides of, a boundary or threshold.

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First Principle

A first principle is a basic proposition or assumption that cannot be deduced from any other proposition or assumption. In philosophy, first principles are from First Cause^[1] attitudes and taught by Aristotelians, and nuanced versions of first principles are referred to as postulates by Kantians.^[2] In mathematics, first principles are referred to as axioms or postulates. In physics and other sciences, theoretical work is said to be from first principles, or ab initio, if it starts directly at the level of established science and does not make assumptions such as empirical model and parameter fitting.

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