meso-, mes-, mesi-
(Greek: middle, intermediate; close to a center line; between)
2. A classification of plankton of intermediate body size, between macroplanktons (large planktons) and microplanktons (very-small planktons).
Probably settled before 5000 B.C., the area was the home of numerous early civilizations, including Sumer, Akkad, Babylonia, and Assyria.
It diminished in importance after the Mongol invaders destroyed its extensive irrigation system in A.D. 1258.2. Etymology: from Ancient Greek ??????????? (Mesopotamía); from ????? (mésos, "between, middle") + ??????? (potamós, "river"), because Mesopotamia is located between the Euphrates and Tigris rivers.
The geography of the area allowed for the development of husbandry, agriculture, and permanent settlements.
Trade with other regions also flourished irrigation techniques were created as well as pottery and other crafts building methods based on clay bricks were developed and elaborate religious cults evolved.
It was the two rivers that became the basis upon which the wealth of the region was based and through relatively easy irrigation, agriculture could yield heavy crops.
2. A native or inhabitant of Mesopotamia (the larger part of which is now Iraq).
2. Those organisms living in the interstitial (small openings, gaps, or cracks) spaces of a sandy sediment.
2. In the fetus, a fold of tunica vaginalis testis (the serous membrane surrounding the front and sides of the testicle) supporting the mesonephros and the developing testis.
3. In the adult, a fold of tunica vaginalis testis between the testis and epididymis.
2. Having a nose of moderate width.
- Oligosaprobic, clear, with no or only slight pollution and high dissolved oxygen.
- Mesosaprobic, moderately polluted; polysaprobic, strongly polluted.
- Antisaprobic, so polluted that no living organism is capable of living in the water.
2. Designating, relating to, or characteristic of running water which is partially polluted.