noun a part of a body of water or a surface that is deepest and furthest away from the surface
verb to reach the bottom of a body of water or a surface
In geology, 'touch bottom' can refer to the exploration of the depth of a body of water or the earth's crust.
In swimming, 'touch bottom' is used to describe the action of a swimmer reaching the bottom of a pool or body of water.
In marine biology, 'touch bottom' refers to the act of a boat or ship reaching the ocean floor.
In shipbuilding, 'touch bottom' can refer to the design and construction of ships that are able to reach shallow waters without running aground.
In recreational diving, 'touch bottom' is a term used to indicate reaching the ocean floor during a dive.
In writing, 'touch bottom' can be used metaphorically to describe reaching the deepest emotional or psychological depths of a character or situation.
In psychology, 'touch bottom' can refer to reaching a point of intense emotional distress or hitting rock bottom in terms of mental health.