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Latin                    abbreviation

ob. : obiit : died

geography : physical

  ocean : a large body of salt water that surrounds a continent; oceans cover more the two-thirds of the Earth's surface.

acronym

  OECD : Organization for Economic Cooperation and Development : this 'rich countries club' was established in 1961 to promote economic growth and the expansion of world trade; it is based in Paris, France and by 2006 has 30 members.
    oncogenic : resulting from a gene which can induce neoplastic transformations in the cell in which it occurs or into which it is introduced.

Latin                    abbreviation

op. cit. : opere citato : in the work cited
    opal : a mineraloid, amorphous hydrated silicon dioxide (SiO2ĚnH2O); the water content being as high as 20%; ranges from colorless through white, milky blue, gray, red, yellow, green, brown and black. Often many of these colors can be seen at once, caused by interference and diffraction of light passing through minute, regularly arranged apertures within the microstructure of opal, which are filled with secondary silica and form thin lamellae inside the opal during solidification.

mineraloid

acronym

  OPEC : Organization of Petroleum Exporting Countries : set up in 1960 and based in Vienna, OPEC is mainly concerned with oil pricing and production issues. Members are: Algeria, Indonesia, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, United Arab Emirates, and Venezuela.

acronym

OSHAThe Occupational Safety and Health Administration : a U.S. Government agency that makes and enforces workplace safety and health regulations (Code of Federal Regulations Title 29). In some states, e.g. California, OSHA has given this authority to a state agency (Cal/OSHA).

botany & gardening

ovary : the enlarged lower part of the pistil in angiospermous plants, enclosing the ovules or young seeds.

botany & gardening

ovule : the plant part that contains the embryo sac and hence the female germ cell, which after fertilization develops into a seed; a rudimentary seed.
 
 

UPDATED : 2007-03-28

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