In the United States, the Centers for Disease Control and Prevention (CDC) uses the term child maltreatment to refer to both acts of commission (abuse), which include "words or overt actions that cause harm, potential harm, or threat of harm to a child", and acts of omission (neglect), meaning "the failure to provide for a childs basic physical, emotional, or educational needs or to protect a child from harm or potential harm". : 11  The United States federal Child Abuse Prevention and Treatment Act defines child abuse and neglect as, at minimum, "any recent act or failure to act on the part of a parent or caretaker which results in death, serious physical or emotional harm, sexual abuse or exploitation" or "an act or failure to act which presents an imminent risk of serious harm". Forms of abuse
As of 2006, the World Health Organization distinguishes four types of child maltreatment: physical abuse; sexual abuse; emotional (or psychological) abuse; and neglect. Physical abuse
Among professionals and the general public, there is disagreement as to what behaviors constitute physical abuse of a child. Physical abuse often does not occur in isolation but as part of a constellation of behaviors including authoritarian control, anxiety-provoking behavior, and a lack of parental warmth. The WHO defines physical abuse as:

Intentional use of physical force against the child that results in – or has a high likelihood of resulting in – harm for the childs health, survival, development, or dignity. This includes hitting, beating, kicking, shaking, biting, strangling, scalding, burning, poisoning, and suffocating.
Triethylenetetramine (TETA and trien), also known as trientine (INN) when used medically, is an organic compound with the formula [CH2NHCH2CH2NH2]2. The pure freebase is a colorless oily liquid, but, like many amines, older samples assume a yellowish color due to impurities resulting from air-oxidation. It is soluble in polar solvents. The branched isomer tris(2-aminoethyl)amine and piperazine derivatives may also be present in commercial samples of TETA. The hydrochloride salts are used medically as a treatment for copper toxicity. Uses
The reactivity and uses of TETA are similar to those for the related polyamines ethylenediamine and diethylenetriamine. It is primarily used as a crosslinker ("hardener") in epoxy curing. Medical uses
The hydrochloride salt of TETA, referred to as trientine hydrochloride, is a chelating agent that is used to bind and remove copper in the body to treat Wilsons disease, particularly in those who are intolerant to penicillamine. Some recommend trientine as first-line treatment, but experience with penicillamine is more extensive.Trientine hydrochloride (brand name Syprine) was approved for medical use in the United States in November 1985.Trientine tetrahydrochloride (brand name Cuprior) was approved for medical use in the European Union in September 2017. It is indicated for the treatment of Wilsons disease in adults, adolescents and children five years of age or older who are intolerant to D-penicillamine therapy.Trientine dihydrochloride (brand name Cufence) was approved for medical use in the European Union in July 2019.