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For instance, a coherent unit of time in some system (such as the second in SI) can be classified as a timel. A coherent unit of length (such as the meter in SI, or the centimeter in CGS) can be termed a lengthel. A coherent unit of mass (such as the kilogram in SI, or the gram in CGS) can be termed a massel. A coherent unit of force (such as the newton in SI, or the dyne in CGS) can be classified as a forcel. And so forth.

Quantitels eliminate the need to use "derived unit" formulas as coherent units for many types of quantity. For instance, a coherent unit of velocity (such as the meter per second in SI, or the centimeter per second in CGS) can simply be termed a velocitel. If one can name the quantity being measured, one can instantly name the quantitel for it.

Quantitels are far more transparent than so-called "honor names", i.e., units named in honor of some "dead scientist" who happens to bear some connection (often obscure or tenuous) to the science surrounding the quantity.  For instance, it is not self-evident that a pascal in SI is a unit of pressure, but it would be if we referred to it as a pressurel.

In addition to their generic use, quantitels can be used as formal names for the units of any specific metrology, as long as some adjective or "brand" mark is attached as a disambiguating prefix.  "Primel" derives its name in part from the fact that it happens to be the first (or "prime") system of measurement to do this. It makes use of the "die-face-1" ( ⚀ ) character (Unicode U+2680_x) as the common branding mark for all its units. This may be pronounced "prime" or "primel", or optionally left silent, depending on whether the context requires disambiguation. So Primel's coherent units are formally defined as the ⚀timel, the ⚀lengthel, the ⚀massel, and so forth.

• See also: Coherence of measurement units
• See also: Quantitels
• See also: Branding

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Second, Primel also introduces many so-called "colloquial" names for its units, as alternatives for the formal names derived from quantitels and SNN_z prefixes. Each colloquial name attempts to provide an intuitive sense of scale by relating the given Primel unit to a customary unit that it might approximate, or to some physical object known to human experience, that might be comparable in size. Primel colloquial names usually end in a noun indicating the kind of quantity being measured, often the noun from which the associated quantitel is derived. So for instance, the ⚀unqua·lengthel, being comparable to a customary hand unit, gets the colloquial name ⚀hand·length. Such colloquial names themselves become amenable to scaling using SNN_z prefixes.

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Primel can further be classified as a "dozenal day/gravity/water" system, based on the manner in which it derives its coherent units. Instead of basing its ⚀lengthel on some grand-scale phenomenon such as the circumference of the Earth (the way the metric system derived its meter), Primel instead uses more "mundane" physical phenomena that human beings experience relatively directly within their environment:

• Primel begins with the mean solar day, the most important periodic cycle affecting human life, and divides it by six powers of dozen to yield the hexcia·day (10⁻⁶_z day) which it uses as its ⚀timel.
• Then it takes a value for gravitational acceleration on Earth's surface, and uses it as the ⚀accelerel.
• Multiplying that by the ⚀timel, yields the ⚀velocitel.
• Multiplying again by the ⚀timel, yields the ⚀lengthel.
• Squaring the ⚀lengthel yields the ⚀areanel.
• Cubing the ⚀lengthel yields the ⚀volumel.
• Primel uses the (maximum) density of water as the ⚀densitel. 
• Multiplying the ⚀densitel by the ⚀volumel, yields the ⚀massel.
• Multiplying the ⚀massel by the ⚀accelerel yields the ⚀forcel. Since the ⚀accelerel is Earth's gravity, the ⚀forcel ends up being equivalent to the weight of one ⚀massel in Earth's gravity. In other words, the ⚀forcel and ⚀weightel are synonymous. (Compare this to how SI, not being a gravity-based metrology, must distinguish the newton versus the kilogram‑force.)
• Multiplying the ⚀forcel by the ⚀lengthel yields the ⚀energel. Since work, heat, and "potential" are just forms of energy, this unit is also known as the ⚀workel, the ⚀heatel, and the ⚀potentialel.
• Dividing the ⚀energel by the ⚀timel, yields the ⚀powerel.
• Dividing the ⚀forcel by the ⚀lengthel yields the ⚀tensionel.
• Dividing the ⚀forcel by the ⚀areanel yields the ⚀pressurel.
• Primel takes a value for the massic heatability (aka specific heat capacity) of water, and uses that as the ⚀masselic·heatabilitel.
• Multiplying the ⚀masselic·heatabilitel by the ⚀massel yields the ⚀heatabilitel.
• Dividing the ⚀heatel by the ⚀heatabilitel, yields the ⚀temperaturel.

Primel is similar to the Tim-Grafut-Maz (TGM) metrology, a coherent dozenal-metric system developed in the 1970_d's=1180_z's by Tom Pendlebury, who was a member of the Dozenal Society of Great Britain.

• However, TGM does not arrive at its timel by dividing the day by pure powers of a dozen. Instead, it first does a binary division of the day, into two semi·days, and then divides each of those into a dozen customary hours, and then divides those by four more powers of dozen, to yield the ⚀semi·pentcia·day, or quadcia·hour, which it uses as TGM's timel, the Tim.
• TGM then uses a (slightly different) value for Earth's gravity as its accelerel, the Gee.
• Multiplying the Gee by the Tim yields the Vlos, TGM's velocitel.
• Multiplying the Vlos by the Tim, yields the Grafut, TGM's lengthel.
• Squaring the Grafut yields the Surf, TGM's areanel.
• Cubing the Grafut yields the Volm, TGM's volumel.
• TGM uses the maximal density of water as its densitel, the Denz.
• Multiplying the Denz by the Volm yields the Maz,TGM's massel.
• Multiplying the Maz by the Gee yields the Mag, TGM's forcel.
• Mutliplying the Mag by the Grafut yields the Werg, TGM's energel.
• Dividing the Werg by the Tim yields the Pov, TGM's powerel.
• Dividing the Mag by the Grafut yields the Tenz, TGM's tensionel.
• Dividing the Mag by the Surf yields the Prem, TGM's pressurel.
• TGM takes a (slightly different) value for the massic heatability (aka specific heat capacity) of water, and uses that as the Calsp, TGM's masselic·heatabilitel.
• Multiplying the Calsp by the Maz yields the Calkap, TGM's heatabilitel.
• Dividing the Werg by the Calkap yields the Calg, TGM's temperaturel.

As it stands, the Grafut is a fair approximation of a customary foot, and so consequently the Volm approximates a cubic foot. For those used to United States Customary (USC), or previously used to British Imperial (BI) units, this correspondence with the foot may seem attractive.  And the fact that a dozenal power of the Tim is a conventional hour, is also an attractive result.  However, at nearly 26_d kilograms, or nearly 57_d avoirdupois pounds, the Maz makes a somewhat unwieldy mass unit, and its dozenal powers do not resemble any familiar units. And the fact that the day itself is not a dozenal power of the Tim means that switching between short durations in multiples of the Tim and longer durations in multiples of days is not a simple matter of adjusting a radix point.

In contrast, the ⚀lengthel is centimeter-like at slightly over 8.2_d millimeters or at about a third of an inch (exactly 31/96_d=27/80_z inch, by a judicious choice of the ⚀accelerel). This is rather small, but its dozenal powers turn out to be quite convenient: The ⚀unqua·lengthel resembles a customary hand measure, or a decimeter.  The ⚀biqua·lengthel resembles an old English ell measure. The ⚀volumel, at about 5/9 milliliter, and the ⚀massel at about 5/9 gram, are also smallish, but when scaled up by three dozenal powers, the ⚀triqua·volumel and ⚀triqua·massel happen to quite closely resemble a liter and a kilogram, respectively. As one proceeds deeper into the derivation of Primel units, other interesting coincidences pop up that help make Primel a rather convenient system of measure.

• See also: Mundane Realities

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