A soldering iron is a hand tool used in soldering. It supplies heat to melt solder so that it can flow into the joint between two workpieces.
Electrology is the practice of electrical hair removal to permanently remove human hair from the body. Electrolysis is the actual process of removing hair using electricity.
Hair removal, also known as epilation or depilation, is the deliberate removal of body hair or head hair.
A phone connector is a family of cylindrically-shaped electrical connectors primarily for analog audio signals. Invented in the late 19th century for telephone switchboards, the phone connector remains in use for interfacing wired audio equipment, such as headphones, speakers, microphones, mixing consoles, and electronic musical instruments. A male connector, is mated into a female connector, though other terminology is used.
Optical tweezers are scientific instruments that use a highly focused laser beam to hold and move microscopic and sub-microscopic objects like atoms, nanoparticles and droplets, in a manner similar to tweezers. If the object is held in air or vacuum without additional support, it can be called optical levitation.
An eyebrow is an area of short hairs above each eye that follows the shape of the lower margin of the brow ridges of some mammals. In humans, eyebrows serve two main functions: first, communication through facial expression, and second, prevention of sweat, water, and other debris from falling down into the eye socket. It is common for people to modify their eyebrows by means of hair removal and makeup.
Laser hair removal is the process of hair removal by means of exposure to pulses of laser light that destroy the hair follicle. It had been performed experimentally for about twenty years before becoming commercially available in 1995-1996. One of the first published articles describing laser hair removal was authored by the group at Massachusetts General Hospital in 1998. Laser hair removal is widely practiced in clinics, and even in homes using devices designed and priced for consumer self-treatment. Many reviews of laser hair removal methods, safety, and efficacy have been published in the dermatology literature.
Tweezers are small hand tools used for grasping objects too small to be easily handled with the human fingers. Tweezers are thumb-driven forceps most likely derived from tongs used to grab or hold hot objects since the dawn of recorded history. In a scientific or medical context, they are normally referred to as just "forceps", a name that is used together with other grasping surgical instruments that resemble pliers, pincers and scissors-like clamps.
A permanent wave, commonly called a perm or permanent, is a hairstyle consisting of waves or curls set into the hair. The curls may last a number of months, hence the name.
Endometrial ablation is a surgical procedure that is used to remove (ablate) or destroy the endometrial lining of the uterus. The goal of the procedure is to decrease the amount of blood loss during menstrual periods. Endometrial ablation is most often employed in people with excessive menstrual bleeding, who do not wish to undergo a hysterectomy, following unsuccessful medical therapy.
Ingrown hair is a condition where a hair curls back or grows sideways into the skin. The condition is most prevalent among people who have coarse or curly hair. It may or may not be accompanied by an infection of the hair follicle (folliculitis) or "razor bumps", which vary in size. While ingrown hair most commonly appears in areas where the skin is shaved or waxed, it can appear anywhere. Anything that causes the hair to be broken off unevenly with a sharp tip can cause ingrown hairs. Ingrown hairs are also caused because of lack of natural exfoliation in the skin.
An epilator is an electrical device used to remove hair by mechanically grasping multiple hairs simultaneously and pulling them out. The way in which epilators pull out hair is similar to waxing, but unlike waxing, they do not remove skin cells. Epilators may use an electric motor or be manually powered with a spring. They may also come with various attachments, like a smaller head to help with epilation of hard-to-reach areas, or an exfoliation head that may help exfoliate the skin before and after epilation.
Dental instruments are tools that dental professionals use to provide dental treatment. They include tools to examine, manipulate, treat, restore, and remove teeth and surrounding oral structures.
Plucking or tweezing can mean the process of human hair removal, removing animal hair or a bird's feathers by mechanically pulling the item from the owner's body. In humans, hair removal is done for personal grooming purposes, usually with tweezers. An epilator is a motorised hair plucker. Those under the influence of deliriants or trichotillomania may pluck their own hair out of habit.
Body grooming is the act of maintaining a clean appearance. It is typically associated with hair.
The Self-Injurious Behavior Inhibiting System (SIBIS) is an apparatus designed to reduce self-injurious behavior (SIB) directed at the head, such as banging the head against walls and other objects or hitting oneself in the head. Invented by Dr. Robert E. Fischell, Glen H. Fountain, and Charles M. Blackburn in 1984, the device is able to detect instances of head-directed SIB, and delivers an aversive electric shock contingent on its occurrence. The United States Food and Drug Administration banned the device in 2020 as part of a larger blanket ban on devices that use electric shocks to modify behavior without the consent of the user. Other devices covered by this ban include the Graduated Electronic Decelerator.
Prepubertal hypertrichosis, also known as childhood hypertrichosis, is a cutaneous condition characterized by increased hair growth, found in otherwise healthy infants and children. Prepubertal hypertrichosis is a cosmetic condition and does not affect any other health aspect. Individuals with this condition may suffer with low self esteem and mental health issues due to societal perceptions of what a "normal" appearance should be. The mechanism of prepubertal hypertrichosis is unclear, but causes may include genetics, systemic illnesses, or medications.
Personal Sound Amplification Products, also known as "Personal Sound Amplification Devices," or by the acronym PSAP, are defined by the U.S. Food and Drug Administration as wearable electronic products that are intended to amplify sounds for people who are not Deaf or Hard of Hearing. They are not hearing aids, which the FDA describes as intended to compensate for hearing loss. According to Dr. Mann of the FDA, choosing a PSAP as a substitute for a hearing aid can lead to more damage to your hearing.
This glossary of electrical and electronics engineering is a list of definitions of terms and concepts related specifically to electrical engineering and electronics engineering. For terms related to engineering in general, see Glossary of engineering.
The graduated electronic decelerator (GED) is a device that delivers powerful electric shocks to the skin, described by the United Nations as torture, created by Matthew Israel for use on people at the Judge Rotenberg Center as part of the institution's behavior modification program. The school has since been condemned for torture by the United Nations special rapporteur on torture for its use of the GED and other inhumane punishments. In 2020, the device was banned in the United States by the Food and Drug Administration, however the ban was overturned in federal court a year later. In response, the United States Congress amended the Food, Drug, and Cosmetic Act to expand FDA's authority to ban such devices.
