the branch of biology dealing with the structure, function, uses, and modes of existence of microscopic organisms.
microbiology
100
A long and distinct period of history with a particular feature or characteristic.
Era
100
An imaginary line around the Earth forming a great circle
Equator
100
Additional pay given to employee as incentive or reward
Bonus
100
To measure the weight (grams or pounds) or something
Weigh
200
a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.
Galaxy
200
A state of political hostility that existed from 1945 until 1990 between countries led by the Soviet Union and countries led by the United States
Cold War
200
Organisms interacting with their physical environment
Ecosystem
200
Illegal traffic in officially controlled commodities such as foreign currency
Black Market
200
To cook small pieces of food by moving it quickly in hot oil
Stir Fry
300
the cover formed by the leafy upper branches of the trees in a forest.
Canopy
300
Rural Era, or mainly Rural economy
Agrarian
300
A person who draws or makes maps or charts.
Cartographer
300
A decrease in price or value
Depreciation
300
A sauce made by adding stock, flour, or other ingredients to the juice and fat that drips from cooking meats
Gravy
400
noting or pertaining to a speed equal to that of sound in air at the same height above sea level.
Sonic
400
Freeing someone from the control of another, typically used when describing the transition between slave states to free labour states.
Emancipation
400
A form of government in which powers and functions are divided between a central government and a number of political subdivisions that have a significant degree of political autonomy.
Federation
400
System that defines money's value in terms of precious metal
Gold Standard
400
To press and stretch dough, usually used with making bread.
Knead
500
Any wind that blows in one regular course, or continually in the same direction.
Trade Winds
500
Belonging to a period before a war
Antebellum
500
A land form at the mouth of a river where the main stream splits up into several distributaries. It is formed from the deposition of the sediment carried by the river as the flow leaves the mouth of the river.
Delta
500
A small and inadequate amount, economics is based on this concept.
Scarcity
500
Widely cultivated tropical plant of India having yellow flowers and a large aromatic deep yellow rhizome; source of a condiment and a yellow dye