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Glossary of Crystallography Terms
beginning with letter D
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defect Tweet Definition of defect Like Definition of defect on Facebook
noun 
  1. A fault or malfunction.
verb 
  1. (intransitive) To abandon or turn against; to cease or change one's loyalty.
     
dichroism Tweet Definition of dichroism Like Definition of dichroism on Facebook
noun 
  1. the property of some crystals of transmitting different colours of light in different directions
  1. (physics) the property of some anisotropic materials of having different absorption coefficients for light polarized in different directions; circular dichroism
     
dimorphism Tweet Definition of dimorphism Like Definition of dimorphism on Facebook
noun 
  1. (biology) The occurrence within a plant of two distinct forms of any part.
  2. (biology) The occurrence in an animal species of two distinct types of individual.
  3. (geology) A property of certain substances that enables them to exist in two distinct crystalline forms.
     
diploid Tweet Definition of diploid Like Definition of diploid on Facebook
noun 
  1. A cell which is diploid.
  2. An organism with diploid cells.
adjective 
  1. (cytology) Of a cell, having a pair of each type of chromosome, one of the pair is derived from the ovum and the other from the spermatozoon. Most somatic cells of higher organisms are diploid.
     
dislocation Tweet Definition of dislocation Like Definition of dislocation on Facebook
noun 
  1. The act of displacing, or the state of being displaced.
  2. The displacement of parts of rocks or portions of strata from the situation which they originally occupied. Slips, faults, and the like, are dislocations.
  3. The act of dislocating, or putting out of joint; also, the condition of being thus displaced.
  4. (materials) A linear defect in a crystal lattice. Because dislocations can shift within the crystal lattice, they tend to weaken the material, compared to a perfect crystal.
     
domain Tweet Definition of domain Like Definition of domain on Facebook
noun 
  1. A geographic area owned or controlled by a single person or organization.
  2. A sphere of influence.
  3. A group of related items, topics, or subjects.
  4. (math) The set of all possible mathematical entities (points) where a given function is defined.
  5. (context, computing, Internet) Any Domain Name System, DNS domain name, particularly one which has been delegate, delegated and has become representative of the delegated domain name and it's subdomain, subdomains
    • BIND 9 Administrator Reference Manual (9.3.2), Copyright © 2004, 2005 Internet Systems Consortium, Inc. ("ISC"), Copyright © 2000-2003 Internet Software Consortium, http://www.bind9.net/manual/bind/9.3.2/Bv9ARM.ch01.html
    • :Every name in the DNS tree is a , even if it is terminal, that is, has no subdomains.
      1. (context, computing, internet) A collection of Domain Name System, DNS or DNS-like domain name, domain names consisting of a delegate, delegated domain name and all its subdomain, subdomains
      2. (computing) A collection of information having to do with a , the computer, computers named in the , and the network on which the computers named in the reside
      3. (computing) The collection of computers identified by a 's domain name, domain names
      4. (context, biology, taxonomy) In the w:Three-domain system, three-domain system, the highest rank in the classification of organisms, above kingdom; in other taxonomic systems, a similarly high rank
      5. (context, biology, taxonomy) In the three-domain system, one of three taxon, taxa at that rank: (Bacteria, Archaea, and Eukaryota)
     
dome Tweet Definition of dome Like Definition of dome on Facebook
noun 
  1. A common structural element of architecture that resembles the hollow upper half of a sphere.
  2. Anything shaped like an upset bowl, often used as a cover, e.g. a cake .
     

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