AL Nail Technician study materials
AL Nail Technician study resources

AL Nail Technician key terms

AL Nail Technician · Get comfortable with the vocabulary.

Disinfection

Using an EPA-registered product on tools and surfaces to destroy most harmful microorganisms, except bacterial spores, after the item has been cleaned of visible debris.

Related: Sanitation, Sterilization, EPA-registered disinfectant
Sterilization

A process that destroys all microorganisms, including bacterial spores, on an item; in salons this is usually done with an autoclave for tools that may contact blood.

Related: Autoclave, Disinfection
Sanitation

The first step of infection control: washing with soap and water or a detergent to remove visible dirt, debris, and many germs from hands, tools, and surfaces.

Related: Disinfection, Cross-contamination
EPA-registered disinfectant

A disinfectant carrying an Environmental Protection Agency registration number on its label, meaning it has been reviewed and approved for killing the germs named on that label.

Related: Disinfection, Sanitation
Bloodborne pathogens

Viruses and bacteria spread through blood or other body fluids, such as hepatitis B, hepatitis C, and HIV; nail professionals must use barriers and proper cleanup to avoid exposure.

Related: Standard precautions, Cross-contamination
Standard precautions

Infection-control practices applied to every client regardless of known health status, including hand washing, gloves, and disinfecting tools between services.

Related: Bloodborne pathogens, Disinfection
Safety Data Sheet (SDS)

A document supplied by a product manufacturer that lists a chemical's hazards, safe handling, first-aid steps, and storage requirements; it must be kept available in the salon.

Related: Ventilation, Allergen
Autoclave

A device that uses high-pressure steam to sterilize metal implements; only items labeled autoclavable should be processed, and proper packaging and cycles must be followed.

Related: Sterilization
Cross-contamination

The transfer of germs from one person, tool, or surface to another, often through shared implements, dirty towels, or unwashed hands.

Related: Sanitation, Standard precautions
Manicure

A cosmetic service for the hands that includes shaping the natural nails, pushing back the cuticles, filing, massage, and usually polish.

Related: Pedicure, Cuticle pusher
Pedicure

A cosmetic service for the feet and toenails that includes soaking, exfoliating, shaping nails, cuticle care, massage, and often polish; foot spas require special disinfection.

Related: Manicure, Foot spa
Cuticle pusher

A tool, often metal or wood, used to gently push back the thin skin on the nail plate after softening; it should be held at a low angle to avoid injuring the nail bed.

Related: Eponychium, Nail plate
Nail file grit

A number describing abrasive particle size on a file or buffer; lower numbers mean coarser abrasives and higher numbers mean finer, gentler abrasives.

Related: Manicure, Nail plate
Foot spa

A pedicure basin that recirculates water through a pump and jets; because debris collects inside, it must be cleaned and disinfected according to board rules after each client.

Related: Pedicure, Disinfection
Monomer

The liquid component of acrylic systems, usually ethyl methacrylate, that softens and bonds with polymer powder to form a hard enhancement when it sets.

Related: Polymer, Polymerization
Polymer

The powder component of acrylic systems, made of finely ground plastic beads that absorb monomer liquid and harden into the finished nail enhancement.

Related: Monomer, Polymerization
Polymerization

The chemical reaction in which monomer molecules link into long chains and the acrylic or gel hardens; heat, light, or a catalyst can drive it.

Related: Monomer, Curing
Primer

A liquid applied to the natural nail before acrylic to improve adhesion by preparing the surface; modern acid-free types are common and should be used sparingly.

Related: Nail plate, Monomer
Nail tip

A pre-shaped plastic extension glued to the free edge of a natural nail to add length before acrylic or gel is applied over it.

Related: Nail form, Nail plate
Nail form

A disposable paper or plastic template fitted under the free edge to build a sculpted extension; it is removed once the product hardens.

Related: Nail tip, Polymerization
UV/LED gel

A light-cured enhancement product that stays flexible until exposed to ultraviolet or LED light, which hardens it; it cannot air-dry.

Related: Curing, Polymerization
Curing

Hardening of a gel or acrylic enhancement through a chemical or light-activated reaction; under-curing leaves a tacky, weak surface prone to lifting.

Related: UV/LED gel, Polymerization
Apex

The thickest point of an enhancement, located over the stress area of the nail, which gives strength and a natural-looking curve.

Related: Curing, Nail plate
Nail plate

The hard, visible part of the nail made mostly of keratin, resting on the nail bed and growing from the matrix.

Related: Nail bed, Matrix
Nail bed

The skin beneath the nail plate that contains blood vessels and nerves, giving the nail its pink color and supplying nutrients.

Related: Nail plate, Matrix
Matrix

The living area at the base of the nail where new cells form and keratinize; damage here can permanently change nail shape or growth.

Related: Nail plate, Lunula
Lunula

The whitish, half-moon shape at the base of the nail plate, formed by the visible front edge of the matrix.

Related: Matrix, Nail plate
Eponychium

The living skin at the base of the nail plate that seals the area and protects against infection; it is often mistakenly called the cuticle.

Related: Nail plate, Paronychia
Onychomycosis

A fungal infection of the nail that can cause thickening, discoloration, and crumbling; it is contagious and requires medical treatment, not a cosmetic service.

Related: Paronychia, Contraindication
Paronychia

Inflammation or infection of the skin around the nail, often from cuts or aggressive cuticle work; it shows redness, swelling, and tenderness.

Related: Eponychium, Onychomycosis
Onycholysis

Separation of the nail plate from the nail bed, leaving a whitish gap; it can result from trauma, moisture, or infection and should not be covered without care.

Related: Nail plate, Nail bed
pH

A scale from 0 to 14 measuring acidity or alkalinity; nails and skin prefer mildly acidic products, and strong shifts can weaken the nail or irritate skin.

Related: Allergen, Monomer
Patch test

A small trial application of a product on the skin, usually 24 to 48 hours ahead, to check for an allergic reaction before a full service.

Related: Allergen, Contraindication
Allergen

A substance that can trigger an immune reaction such as redness, itching, or swelling; repeated exposure may make a client permanently sensitive to it.

Related: Patch test, Monomer
Contraindication

A condition or circumstance that makes a service unsafe or inadvisable, such as an open sore, infection, or known allergy.

Related: Onychomycosis, Patch test
Ventilation

The movement of fresh air through a salon to reduce inhalation of vapors, dust, and fumes from acrylics, solvents, and files; local exhaust at the workstation is best.

Related: Safety Data Sheet (SDS), Monomer
Alabama Board of Cosmetology and Barbering

The state agency that licenses nail technicians and salons, sets sanitation rules, investigates complaints, and may discipline licensees.

Related: Licensee, Continuing education
Licensee

A person holding a valid Alabama license to practice nail technology; the license must be posted and available for inspection.

Related: Alabama Board of Cosmetology and Barbering, Continuing education
Scope of practice

The tasks a licensed nail technician is legally allowed to perform; doing services outside it, such as medical treatment, can lead to discipline.

Related: Licensee, Contraindication
Continuing education

Required training hours a licensee must complete during each renewal period to keep a license active and stay current on safety and technique.

Related: Licensee