TN Nail Technician study materials
TN Nail Technician study resources

TN Nail Technician key terms

TN Nail Technician · Get comfortable with the vocabulary.

Cleaning

The first step of infection control: using soap or detergent and water to scrub away dirt, oil, leftover product, and many germs from hands, tools, and surfaces before disinfection.

Related: Disinfection, Sterilization
Disinfection

Treating cleaned, nonporous tools and surfaces with an EPA-registered hospital-grade product that kills most harmful bacteria, fungi, and viruses, but not bacterial spores.

Related: Cleaning, Sterilization, Nonporous implement
Sterilization

A process that destroys all microbial life, including spores, usually by high-pressure steam in an autoclave; it is reserved for implements that may contact broken skin or blood.

Related: Autoclave, Disinfection
Autoclave

A device that sterilizes heat-tolerant metal implements using high-pressure steam; tools must be cleaned and dried first, then stored in sealed packets until use.

Related: Sterilization
Standard Precautions

An infection-control policy of treating every client's blood and body fluids as potentially infectious, so gloves and other barriers are used whenever contact is possible.

Related: Bloodborne pathogens, Disinfection
Bloodborne pathogens

Microorganisms carried in blood or body fluids, including hepatitis B, hepatitis C, and HIV, that can enter the body through cuts, needlesticks, or mucous membranes.

Related: Standard Precautions
Safety Data Sheet (SDS)

A manufacturer document, required by OSHA, that lists a product's hazards, ingredients, safe handling, first aid, and storage; keep one for every chemical in the salon.

Related: Standard Precautions
Nonporous implement

A tool with a smooth, sealed surface, such as stainless steel, glass, or hard plastic, that absorbs no liquid and can therefore be cleaned and disinfected for reuse.

Related: Disinfection
Nail plate

The visible hard covering of keratin on the back of the fingertip or toe; it protects the nail bed and looks pink where the tissue beneath shows through.

Related: Nail bed, Nail matrix
Nail bed

The layer of skin directly beneath the nail plate, supplied with blood vessels and nerves, to which the plate attaches; damage here can permanently alter nail growth.

Related: Nail plate, Hyponychium
Nail matrix

The living tissue at the base of the nail where new cells form and harden into the plate; it controls the nail's thickness, shape, and rate of growth.

Related: Nail plate, Lunula
Eponychium

The living skin at the base of the nail that overlaps the matrix and seals the area; it should be treated gently and never cut, because injury invites infection.

Related: Cuticle
Cuticle

The thin, dead band of skin cells shed by the eponychium that clings to the nail plate; it is softened and gently pushed back rather than cut.

Related: Eponychium
Hyponychium

The skin seal beneath the free edge of the nail plate where the nail lifts off the fingertip; it blocks dirt and germs from reaching the nail bed.

Related: Nail bed, Nail plate
Lunula

The pale half-moon at the base of the nail plate, created by thicker, less transparent cells from the matrix; it is usually most visible on the thumbs.

Related: Nail matrix
Onychomycosis

A contagious fungal infection of the nail that causes thickening, yellow-brown discoloration, and crumbling; nail technicians cannot diagnose or treat it and must refer the client.

Related: Onycholysis, Paronychia
Paronychia

An infection of the tissue around the nail, usually bacterial, entering through a hangnail, torn skin, or cut cuticle, marked by redness, swelling, and sometimes pus.

Related: Eponychium
Onycholysis

Lifting or separation of the nail plate from the nail bed, leaving a whitish gap; causes include trauma, harsh filing, aggressive cuticle work, and skin conditions.

Related: Onychomycosis, Nail bed
Beau's lines

Deep horizontal grooves running across the nail plate, caused by a short interruption in matrix growth from illness, high fever, or injury.

Related: Nail matrix
Keratin

The tough fibrous protein that forms the nail plate and the outer layer of skin; nail cells produce it as they mature, then flatten and harden.

Related: Nail plate, Integumentary system
Integumentary system

The body system consisting of skin, hair, nails, and glands; it shields the body, controls temperature, and senses touch, and the nails are its appendages.

Related: Keratin
Phalanges

The bones of the fingers and toes, three in each finger and two in each thumb or big toe; the distal phalanx supports the nail bed.

Related: Nail bed
Capillary

A microscopic blood vessel linking arteries to veins that delivers oxygen and nutrients to the skin and nail bed; its color gives healthy nails their pink tone.

Related: Nail bed
Base coat

A thin first layer of polish that bonds to the nail plate, prevents dark pigments from staining it, and helps the color coat go on smoothly.

Related: Top coat, Nail plate
Top coat

The final layer of polish that seals in color, adds gloss, and resists chipping; capping the free edge helps the manicure last longer.

Related: Base coat
Effleurage

A light, gliding massage stroke using the palms and fingers, moving toward the heart; it relaxes the hand and arm and boosts circulation during a manicure.

Nail tip

A pre-shaped plastic extension glued to the free edge to add length; it is blended into the plate and covered with overlay product for strength.

Related: Nail wrap, Sculpted nail
Nail wrap

A sheer fabric, silk, or fiberglass overlay bonded with resin over the nail plate to strengthen, repair, or lengthen it; the fabric is trimmed and sealed with resin.

Related: Nail tip
Sculpted nail

An artificial nail built on the natural plate with a form and liquid-and-powder or gel product, letting the technician control length, shape, and arch.

Related: Monomer, Polymer
Monomer

The liquid component of acrylic systems, typically ethyl methacrylate, that dissolves the polymer powder and reacts with the initiator to harden.

Related: Polymer, Polymerization
Polymer

The powder component of acrylic systems, made of finely milled plastic beads; mixed with monomer it forms a workable bead that cures into a hard nail.

Related: Monomer, Polymerization
Polymerization

The chemical reaction in which monomer molecules join into long chains and the soft bead hardens; heat, catalyst, and the correct mix ratio affect its speed.

Related: Monomer, Polymer
Primer

A liquid applied to the natural nail plate before acrylic to improve adhesion and manage moisture; it must be used sparingly with good ventilation.

Related: Monomer
Consultation

The conversation before a service in which the technician asks about health, medications, allergies, and preferences, then explains the plan, products, and price.

Related: Contraindication
Contraindication

A client condition or circumstance that makes a service unsafe or inadvisable, such as broken skin, infection, or product allergy, requiring the technician to decline or refer.

Related: Consultation, Scope of practice
Scope of practice

The services and tasks a licensed nail technician may legally perform under Tennessee law, such as manicures, pedicures, and enhancements, but not diagnosis or medical treatment.

Related: Licensure, Tennessee Board of Cosmetology and Barber Examiners
Tennessee Board of Cosmetology and Barber Examiners

The state board that licenses cosmetologists, barbers, and nail technicians, writes sanitation rules, approves schools, and handles complaints and discipline in Tennessee.

Related: Licensure, Scope of practice
Licensure

Official state permission to practice nail technology, granted after required training and examinations; a license must be posted and renewed before its expiration date.

Related: Tennessee Board of Cosmetology and Barber Examiners, Scope of practice