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32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Stationary guideline
A section of hair cut first that establishes the length and shape; every following section is cut to match it, so the guideline itself does not move.
Traveling guideline
A guideline that moves forward as each new section is cut. It is used in layered and graduated cuts where the length changes gradually across the head.
Projection (elevation)
The angle at which a subsection of hair is held away from the head before cutting. Zero degrees gives one length, 90 degrees gives layers.
Blunt cut
A one-length cut performed at zero elevation with the ends cut straight across. It creates a solid, heavy perimeter line with no layering.
Point cutting
A texturizing technique in which the shear tips cut into the ends of a section at an angle, softening the line and removing bulk without creating a visible blunt edge.
Clipper-over-comb
A cutting technique in which the clippers ride along the comb to remove length. It is used for short tapers, fades, and blending the sides into the top.
Apex
The highest point on the top of the head, found by crossing the front-to-back and ear-to-ear lines. It is a key reference point for sectioning and layering.
Freehand stroke
A straight-razor stroke in which the razor travels toward the barber while the free hand stretches the skin. It is typically used on the right side of the face.
Backhand stroke
A razor stroke in which the palm is turned up and the razor travels away from the barber. A right-handed barber uses it on the left side of the face.
Stropping
Drawing the razor across a leather strop with the spine leading and the edge trailing. It aligns and polishes the edge and is done before each shave.
Honing
Grinding a razor on a sharpening stone to restore a dull or damaged edge. It is done only when stropping can no longer bring up the edge.
Skin tension
Pulling the skin taut in the direction opposite the razor stroke. Firm, even tension lets the blade cut cleanly and reduces nicks and skipped strokes.
Shaving lather
Soap or cream whipped with water and applied warm to the beard. It softens the hair, holds moisture against the skin, and lubricates the razor's path.
Tuberculocidal disinfectant
An EPA-registered hospital-grade disinfectant proven to kill Mycobacterium tuberculosis. Barbering implements that contact skin are disinfected in it by full immersion.
Cleaning before disinfection
Removing visible hair, oil, and debris with soap and water before any disinfectant is used. Disinfectants do not work on soiled surfaces or tools.
Sterilization versus disinfection
Sterilization destroys all microorganisms including spores, usually in an autoclave. Disinfection kills most pathogens on surfaces but may leave spores alive.
Blood spill procedure
Stop the service, put on gloves, spray the spill with disinfectant, blot with disposable absorbent material, double-bag and discard it, then wash hands.
Single-use items
Porous or porous-type supplies such as razor blades, neck strips, cotton, wooden sticks, and emery boards. They cannot be disinfected and are discarded after one client.
Quaternary ammonium compounds
A common class of disinfectant that is bactericidal and often fungicidal but frequently not tuberculocidal. The label must be checked against the required kill claim.
Safety Data Sheet
A document listing a chemical product's hazards, first aid, and handling instructions. One must be kept on site for every chemical in the shop.
Oregon Health Licensing Office
The state agency that licenses and regulates barbers, hair designers, estheticians, and nail technicians in Oregon under the authority of ORS 690.
ORS 690
The chapter of Oregon Revised Statutes that governs barbering, hair design, esthetics, and nail technology practice, licensing, and enforcement in the state.
OAR chapter 817
The Oregon Administrative Rules adopted by the Board of Barbers and Hairdressers. Division 007 within this chapter contains the sanitation rules for licensees.
Person in charge
The licensee designated at a facility as responsible for ensuring the shop, its equipment, and all staff comply with Oregon licensing and sanitation rules.
Oregon barber training hours
Oregon requires completion of an approved barbering program of 1,100 clock hours, followed by passing written and practical examinations for licensure.
Booth renter licensing
Independent contractors and booth renters must hold their own current Oregon license even though they are not employees of the shop where they work.
Epidermis
The outermost skin layer, which has no blood vessels. Its deepest basal layer contains melanocytes that produce the melanin giving color to skin and hair.
Dermis
The middle skin layer, containing blood vessels, nerves, sweat glands, sebaceous glands, and hair follicles. It supplies nutrients to the epidermis above it.
Arrector pili muscle
A small smooth muscle attached to each hair follicle. When it contracts in cold or fear, the hair lifts and the skin forms goose bumps.
Anagen phase
The active growth stage of the hair cycle, lasting roughly two to six years. During this phase the follicle produces a new hair shaft.
Fifth cranial nerve
The trigeminal nerve, which is the chief sensory nerve of the face. It carries sensation from the forehead, cheeks, nose, and lower jaw.
Masseter muscle
A chewing muscle lying at the angle of the jaw that raises the mandible. It is a common site for facial massage and must be worked with care.