Key Number System - A research aid developed by West Publishing Company which classifies digests of cases in to various law topics and subtopics which are given paragraph numbers called "Key Numbers." Each key number for a given topic helps the researcher quickly find all references to the legal matter being researched.

Kick - to stop using or withdraw from a drug.

Kicking Down - using less than your normal dose of heroin to reduce your tolerance; a limited form of withdrawal.

Kidnapping - The unlawful and carrying away of a human being by force and against his will.

Kinesthetic Information - Information from our muscles and joints that tells us where our body is in space and how its various parts are oriented in relation to each other. Kinesthetic information is crucial for making accurate movements.

Kinesthetic Sense - Sense concerned with bodily position and movement of the body parts relative to each other.

Kinship Care - a situation in which a child is placed in the full-time physical custody of a specified relative who cares for the child in place of the child's parents.

Kinship Care Navigator Program - a statewide program to assist kinship caregivers who are seeking information or assistance regarding services and benefits available at the state and local levels that address the needs of those caregivers.

Klinefelter's Syndrome - Chromosomal defect in males in which there is an extra X chromosome; manifestations may include underdeveloped testes, physical feminization, sterility, and mental retardation.

Knowingly - With knowledge, willfully or intentionally with respect to a material element of an offense.

Koro  - A culture specific syndrome of China involving fear of retraction of penis into abdomen with the belief that this will lead to death.

Korsakoff's Syndrome - A syndrome of amnesia and confabulation following chronic alcoholism. Short-term memory is particularly affected.Named after the Russian psychiatrist Korsakoff.