Descriptive geometry
* is concerned with analyzing and solving space distances and relationships
  - geometry
* study of points, lines and planes in their spatial relationships.

Deviance
* helps maintain social cohesion and the collective conscious.
* is but one step from that stage at which the society defines such behavior as a crime
  - irregularity
  - on a continuum from minor cultural variations to behavior that is destructive

Dissipation
* causes warming.
* danger to both health and truth.
* is determined by viscosity, and convection by conductivity
  - dispersion
  - due to microbial decomposition, with warm, moist conditions favoring decomposition
  - frivolous, unjustified spending of marital assets
  - humoring
  - the result of irreversible processes that take place in inhomogeneous systems

Dissociation
* can affect the patient's memory, sense of reality, and sense of identity
  - become so intense that some women deny their pregnancies even to themselves
  - include depersonalisation and derealisation
* common phenomena in cyberspace at large.
* disruption in normally integrated consciousness.
* failure to integrate experiences that normally go together.
* is also a survival skill of great value in response to trauma and abuse
  - an everyday conscious experience which begins in childhood
  - another word for 'self induced trance state', altered state etc
  - chemical processes
  - due to lowering of the firing threshold of limbic neuronal circuits
  - employed by children to escape from their abuser
  - low in patients with medically established brain damage
  - separation
* is the first line of human defense in shock
  - logical complement of the statistical concept of association
* is the loss of conscious awareness of the real world
  - the ability to access information normally in consciousness
  - minds way of breaking the connections between itself and the outside world
  - natural process of providing insulation to an over-exposed aspect of self
* kind of emotional protection in otherwise traumatizing situations.
* means complete ionization in water.
* normal mental response to anxiety.
* occurs in many forms.
* psychological defense mechanism that also has psychobiological components.
+ Dissociative identity disorder, Definitions: Mental illnesses :: Psychology :: NPOV disputes
  * Dissociation is a symptom. Most people experience normal dissociation, where they stop paying attention to what is happening around them. People with DID have pathological dissociation, which is much more serious. It involves problems with memory and attention that make it hard for people to work, shop and have relationships with other people. Everyone can dissociate but some people can do it much more easily and to an extreme that can be unhealthy.

Donation
* are an investment in public lands to ensure they recieve proper care.
* gift
  - of life, or sight, to others
* involves a surgical procedure to remove the needed organs and tissues.
* is an act of faith, hope and charity
  - opportunity to help save a life or restore someone's sight
  - the giving of the body to a medical facility or school
* occurs after a loved one dies.
* provide animals for sacrifice to feed the hungry in many countries.
* surgical procedure respectful of the body.

Directional lighting
* produces shadows that can help locate surface defects such as burrs or pits.
* provides visual queues as to the orientation of the cones.