فهرست
Biodiversity
Title: Biodiversity
Pronunciation: /ˌbaɪ.əʊ.daɪˈvɜː.sə.ti/
Part of speech: Noun
Formal or informal: Formal
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: bahy-oh-di-vur-si-tee
Synonym: Variety of life, biological diversity
Opposite: Homogeneity
The variety of living organisms in a particular habitat or ecosystem
The rainforest has a high level of biodiversity with many different species of plants and animals
Environmentalist
Title: Environmentalist
Pronunciation: /ɪnˌvaɪ.rənˈmen.təl.ɪst/
Part of speech: Noun
Formal or informal: Formal
Countable or uncountable: Countable
Transitive or intransitive: Intransitive
Stress marks: en-vahy-ruhn-men-tl-ist
Synonym: Conservationist, eco-activist, green advocate
Opposite: Polluter
A person who is concerned about the protection of the natural environment
The environmentalist protested against the construction of the new oil pipeline
Conservation
Title: Conservation
Pronunciation: /ˌkɒn.səˈveɪ.ʃən/
Part of speech: Noun
Formal or informal: Formal
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: kon-ser-vey-shuhn
Synonym: Preservation, protection, safeguarding
Opposite: Destruction
The protection and preservation of natural resources and wildlife for future generations
The national park has strict conservation policies to protect the wildlife and ecosystems within its boundaries
Deforestation
Title: Deforestation
Pronunciation: /diːˌfɒr.ɪˈsteɪ.ʃən/
Part of speech: Noun
Formal or informal: Formal
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: dee-fawr-uh-stey-shuhn
Synonym: Clearcutting, logging, forest destruction
Opposite: Reforestation
The clearing or removal of forests or trees, often for agricultural or commercial purposes
The deforestation of the Amazon rainforest has had a devastating impact on the environment and wildlife
Eclipse
Title: Eclipse
Pronunciation: /ɪˈklɪps/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Countable
Transitive or intransitive: Intransitive
Stress marks: ih-klips
Synonym: Occultation, blockage, overshadowing
An astronomical event in which one celestial body passes in front of another
The solar eclipse was visible from our location and we all wore special glasses to safely view it
Solar
Title: Solar
Pronunciation: /ˈsəʊ.lər/
Part of speech: Adjective
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: soh-ler
Synonym: Photovoltaic, sun-powered, solar-powered
Relating to or derived from the sun; using energy from the sun to generate electricity or heat
The solar panels on the roof of the house provide energy for heating and electricity
Lunar
Title: Lunar
Pronunciation: /ˈluː.nər/
Part of speech: Adjective
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: loo-ner
Synonym: Moon-related, moon-based, moon-derived
Relating to or derived from the moon; occurring or appearing during the time of the moon’s phases
The lunar eclipse was visible from our location and we all went outside to watch it
Moonlight
Title: Moonlight
Pronunciation: /ˈmuːn.laɪt/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: moon-lahyt
Synonym: Moonbeam, lunar light, night light
The light reflected from the surface of the moon, often providing a soft, dim illumination at night
The moonlight shone through the window and illuminated the room with a soft glow
Northern lights
Title: Northern lights
Pronunciation: /ˌnɔː.ðən ˈlaɪts/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: nawr-th ern lahyts
Synonym: Aurora borealis, polar lights, northern aurora
A natural light display in the sky, also known as aurora borealis
We went on a trip to see the northern lights and were amazed by the colorful display in the sky
Tide
Title: Tide
Pronunciation: /taɪd/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Countable
Transitive or intransitive: Intransitive
Stress marks: tahyd
Synonym: Sea level, water level, ocean motion
The rise and fall of the sea level caused by the gravitational pull of the moon and sun
The tide was low and we were able to walk out to the rocks to explore the tide pools
Steam
Title: Steam
Pronunciation: /stiːm/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: steem
Synonym: Vapor, mist, fog
The hot vapor that is produced when water is heated to its boiling point
The steam from the pot of boiling water filled the kitchen with a warm, humid mist
Dawn
Title: Dawn
Pronunciation: /dɔːn/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: dawn
Synonym: Sunrise, daybreak, beginning
Opposite: Dusk
The time of day when the sun begins to rise above the horizon; also, the beginning
We woke up early to watch the dawn and see the first light of day
Eruption
Title: Eruption
Pronunciation: /ɪˈrʌpt/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Countable
Transitive or intransitive: Intransitive
Stress marks: ih-ruhp-shuhn
Synonym: Outburst, explosion, blast
A sudden and violent outburst, often used to describe a volcanic eruption or explosion
The eruption of the volcano caused widespread damage and forced many people to evacuate their homes
Volcanic
Title: Volcanic
Pronunciation: /vɒlˈkæn.ɪk/
Part of speech: Adjective
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: vol-kan-ik
Synonym: Volcanic-related, volcanic-produced, volcanic-active
Relating to or produced by a volcano; characterized by volcanic activity or eruptions
The volcanic ash covered the landscape and made it difficult to breathe
Lava
Title: Lava
Pronunciation: /ˈlɑː.və/
Part of speech: Noun
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: lah-vuh
Synonym: Magma, molten rock, flowing rock
Molten rock that flows from a volcano during an eruption
The lava from the volcano flowed down the mountain and destroyed everything in its path.
Landslide
Title: Landslide
Pronunciation: /ˈlænd.slaɪd/
Part of speech: Noun
Formal or informal:Both
Countable or uncountable: Countable
Transitive or intransitive: Intransitive
Stress marks: land-slahyd
Synonym: Rockslide, mudslide, avalanche
A sudden and rapid movement of a large amount of rock, soil, or debris down a slope or hillside
The landslide caused by the heavy rain destroyed several homes and blocked the road
Ecology
Title: Ecology
Pronunciation: /iˈkɒl.ə.dʒi/
Part of speech: Noun
Formal or informal: Formal
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: ih-kol-uh-jee
Synonym: Environmental science, ecosystem analysis, nature study
The branch of biology that deals with the relations of organisms to one another
The study of ecology helps us understand the complex relationships between living organisms and their environment.
Nonrenewable
Title: Nonrenewable
Pronunciation: /ˌnɒn.rɪˈnjuː.ə.bəl/
Part of speech: Adjective
Formal or informal: Formal
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: non-ri-noo-uh-buhl
Synonym: Finite, exhaustible, limited
Opposite: Renewable
Not able to be renewed or replaced within a reasonable amount of time
Nonrenewable resources like oil and coal are becoming increasingly scarce and expensive
Hydroelectric
Title: Hydroelectric
Pronunciation: /ˌhaɪ.drəʊ.ɪˈlek.trɪk/
Part of speech: Adjective
Formal or informal: Both
Countable or uncountable: Uncountable
Transitive or intransitive: Intransitive
Stress marks: hahy-droh-i-lek-trik
Synonym: Water-generated, hydro-powered, hydro-energy
Relating to or using electricity generated by the energy of moving water
Hydroelectric power is a clean and renewable source of energy that can be generated by the flow of rivers or waterfalls.
Turbine
Title: Turbine
Pronunciation: /ˈtɜː.baɪn/
Part of speech: Noun
Formal or informal: Formal
Countable or uncountable: Countable
Transitive or intransitive: Intransitive
Stress marks: tur-bahyn
Synonym: Generator, engine, motor
A machine with a rotor that is turned by the force of a fluid or gas, such as steam or water,
The wind turbine on the hill generates enough electricity to power several homes
