Webster's Online Dictionary
with Multilingual Thesaurus Translation

 
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Specialty Expressions: ECOLOGICAL SYSTEM

ExpressionsDomainDefinition
Closed ecological systemAerospaceA system that provides for the maintenance of life in an isolated living chamber through complete reutilization of the material available, in particular, by means of a cycle wherein exhaled carbon dioxide, urine, and other waste matter are converted chemically or by photosynthesis into oxygen, water, and food. Compare controlled-leakage system, open system. (references)
Ecological systemAerospaceA habitable environment, either created artificially, as in a manned space vehicle, or occurring naturally, such as the environment on the surface of the earth, in which man, animals, or other organisms can live in mutual relationship with one another and the environment. Ideally the environment furnishes the sustenance for life, and the resulting waste products revert or cycle back into the environment to be used again for the continuous support of life. (references)

Source: compiled by the editor from various references; see credits.

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Topics by Level of Interest: ECOLOGICAL SYSTEM

Topics sorted by level of InterestLevel (1=low, 600=high)   Topics sorted AlphabeticallyLevel (1=low, 600=high)
Closed ecological system5   Closed ecological system5

Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses).