When care takers do not give a person they care for the goods or services needed to avoid harm or illness.
The failure to provide for the child's basic needs. Neglect can be physical, educational, or emotional. Physical neglect can include not providing adequate food or clothing, appropriate medical care, supervision, or proper weather protection (heat or coats). Educational neglect includes failure to provide appropriate schooling, special educational needs, or allowing excessive truancies. Psychological neglect includes the lack of any emotional support and love, chronic inattention to the child, exposure to spouse abuse, or drug and alcohol abuse.
Source: Children Welfare Information Gateway