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Term Main definition
ex-situ conservation

The conservation of components of biological diversity outside their natural habitats.

Exclusive Economic Zone

The area beyond and adjacent to the territorial sea which shall not exceed beyond 200 nautical miles from the baseline as defined under existing laws.

Synonyms - EEC
existing mining right

A valid and subsisting mining claim or permit or quarry permit or any mining lease contract or agreement covering a mineralized area granted or issued under pertinent mining laws.

Synonyms - existing quarrying right
exotic species

Species or subspecies of flora and fauna which do not naturally occur within the protected area at present or in historical time.

Synonyms - introduced species
experimental forest

Forest land set aside by the DENR Secretary exclusively for scientific, educational and research purposes.


A low-cost additive such cassava flour to reduce cost and modify glue mix properties.

exterior plywood

Plywood designed to withstand outdoor exposure usually bonded with phenol formaldehyde resin.

Synonyms - marine plywood

A compound occurring in wood but not forming part of structural elements that can be removed with hot or cold water, ether, benzene, or other solvents that does not substantially degrade the wood substance.


The general term for substances such as gums, latex, resins, or oleoresins derived from plants.