lichen
Lichen is a small, slow-growing organism that looks like a flat, crusty plant. It usually grows on rocks, tree trunks, and walls and is actually a mix of algae and fungi living together.
例文
3 / 5The old stone wall is covered in green and orange lichen.
The old stone wall is covered in green and orange lichen.
The historical committee noted that lichen is damaging the ancient marble statues.
The historical committee noted that lichen is damaging the ancient marble statues.
Wow, this tree is almost completely hidden by thick lichen!
Wow, this tree is almost completely hidden by thick lichen!
語族
覚え方のコツ
Think of 'Alice Algae' and 'Freddie Fungus' taking a 'likin' (lichen) to each other and living together on a rock.
クイックテスト
The hikers noticed colorful ______ growing on the surface of the mountain rocks.
正解！
正解は： lichen
例文
The old stone wall is covered in green and orange lichen.
everydayThe old stone wall is covered in green and orange lichen.
The historical committee noted that lichen is damaging the ancient marble statues.
formalThe historical committee noted that lichen is damaging the ancient marble statues.
Wow, this tree is almost completely hidden by thick lichen!
informalWow, this tree is almost completely hidden by thick lichen!
Lichen species are frequently used by scientists to monitor atmospheric pollution levels.
academicLichen species are frequently used by scientists to monitor atmospheric pollution levels.
Our exterior cleaning service specializes in removing lichen from office building facades.
businessOur exterior cleaning service specializes in removing lichen from office building facades.
語族
よく使う組み合わせ
よく使うフレーズ
lichen crust
lichen crust
foliose lichen
foliose lichen
lichen growth
lichen growth
よく混同される語
Moss is a simple green plant with tiny leaves, whereas lichen is a combination of fungus and algae.
A lycan is a fictional werewolf, sounding similar to the pronunciation 'li-ken'.
使い方のコツ
Lichen is usually treated as an uncountable mass noun when referring to the growth generally, but can be countable when referring to specific biological species.
よくある間違い
Learners often mistake lichen for moss; remember that lichen is usually flatter, crustier, and can be many colors like orange or grey.
覚え方のコツ
Think of 'Alice Algae' and 'Freddie Fungus' taking a 'likin' (lichen) to each other and living together on a rock.
語源
Derived from the Greek word 'leikhen', which referred to a plant-like growth or skin disease.
文法パターン
文化的な背景
Lichens have been used for centuries in some cultures as a source of natural dyes for wool and clothing.
クイックテスト
The hikers noticed colorful ______ growing on the surface of the mountain rocks.
正解！
正解は： lichen
関連語彙
natureの関連語
rainforest
A1A thick forest in a tropical area that receives a large amount of rain throughout the year. It is a dense habitat known for having many different types of plants and animals.
tundra
A1A large, flat area of land in very cold parts of the world, such as the Arctic. In this area, the ground is frozen and there are no trees, only small plants like moss.
wetland
A1A wetland is an area of land that is always wet or covered with shallow water. It is a very important place where many different plants and animals, like birds and frogs, live.
coral reef
A1A coral reef is a large underwater structure made from the skeletons of small sea animals called corals. They are usually found in warm, shallow parts of the ocean and provide a home for many types of fish.
vegetation
A1Vegetation refers to all the plants and trees that grow in a particular area. It is used to describe the green cover of the earth, like forests or grass.
foliage
A1Foliage refers to the leaves of a plant or tree, considered as a group. It is often used to describe the overall appearance and mass of greenery in a landscape or forest.
canopy
A1A canopy is a cover that hangs over something, like a bed or a seat, to provide shade or protection. In nature, it is the top layer of a forest where the branches and leaves of tall trees meet to form a roof.
photosynthesis
A1Photosynthesis is the natural process that green plants use to make their own food. They use sunlight, water, and carbon dioxide to create energy and release oxygen into the air.
pollination
A1Pollination is the process of moving pollen from one flower to another to help plants make seeds and fruit. This is usually done by insects like bees or by the wind.
seedling
A1A seedling is a very young plant that has just started to grow from a seed. It usually has a small green stem and its first few tiny leaves.
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