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单词 lichen
释义

lichen /'laɪk(ə)n//'laɪkən/

英汉-汉英词典
  1. n. 地衣；青苔
  2. vt. 使长满地衣
时 态: lichened, lichening, lichens
形容词: lichenous
词组 | 习惯用语
lichen planus 扁平苔癣
英语例句库
  1. The stone stairway was covered with lichen.
    那石级长满了地衣。
  2. Fragments of the thallus containing both phycobiont and mycobiont cells may also grow into new lichens, a from of asexual reproduction.
    地衣的碎裂片中，如含有藻类和真菌共生时，也可长成独立植株，这是一种无性的生殖形式。
  3. The lichen is a typical example of the intergrowth among the microorganism, it is fungi, blue bacterium or homobium of the alga.
    地衣就是微生物间共生的典型例子，它是真菌和蓝细菌或藻类的共生体。
  4. Reproduction in lichens may be asexual by soredia (algal cells enclosed by fungal hyphae) or by sexual fungal spores, which can survive only if some algal cells are also present.
    地衣可以利用粉芽（真菌菌丝包裹藻类细胞）进行无性生殖或利用真菌孢子进行有性生殖。

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原声例句
生活大爆炸 第5季

No, the best organism for human beings to merge with is the lichen itself.

和人类杂交最好的生物就是苔藓。

PBS趣味科普

It takes these map lichens, from frigid Greenland, a century to grow a single centimeter.

这些来自寒冷格陵兰的地图地衣需要一个世纪才能长出一厘米。

万物简史

Consider the lichen. Lichens are just about the hardiest visible organisms on Earth, but among the least ambitious.

想一想地衣。地衣大概是地球上最坚强的可见生物，也是最没有雄心壮志的生物之一。

科学60秒 听力 2016年9月合集

As for whether some lichens might have four, five species?

至于是否有地衣含有第四或第五种成分？

昆虫王国第二季 （原声版）

They also feed on moss and lichen growing on the outside.

它们也吃树外面长的苔藓和地衣。

PBS趣味科普

In 2007, those map lichens survived atmospheric re-entry on a simulated meteorite.

2007 年的那些地图地衣在模拟陨石和大气再入中幸存下来。

科学60秒 听力 2014年7月合集

Fragments from mosses, algae, lichens and liverworts were trapped in the feathers.

他们发现其中残存着微量苔藓，藻类，地衣以及地钱片。

地球的奥秘

So these monkeys have developed a very unusual diet — toxic moss and lichens.

因此滇金丝猴开发出一种非比寻常的食谱——有毒的苔藓和地衣。

少儿畅学课堂

Only moss and lichens and algae can survive in such a cold climate.

只有苔藓、地衣和藻类，可以在如此寒冷的气候下存活。

海底两万里（原版）

A few lichens of the species Usnea melanoxanthra sprawled over the black rocks.

一些单条黑色的苔藓品种丛生，铺在黑色岩石上。

中文百科

地衣

墙上的地衣
火成岩上的地衣

地衣，是由微观的绿藻或蓝藻与丝状的真菌群丛组成的共生生物。共生体中藻类和真菌各自分工，藻类负责进行光合作用制造营养，而真菌负责吸收水分和无机盐。地衣的外部形状由真菌形成，因此根据真菌来命名。真菌通常组成地衣躯体的大部分，但是在丝状的和凝胶状的地衣中并非如此。地衣中的真菌通常是子囊菌门的成员，很少是担子菌门的成员。一些地衣分类学家将地衣放在菌藻植物门（或地衣植物门）中，但是这种做法忽略了事实：其成员属于不同的世系。地衣植物约有1.8万余种。

英语百科

Lichen 地衣

A tree covered with leafy foliose lichens and shrubby fruticose lichens
A crusty crustose lichen on a wall
A leafy foliose lichen on a branch of a tree
Common lichen growth formsThis wolf lichen, Letharia vulpina, grows like a multiply branched tuft or leafless mini-shrub, so has a fruticose growth form.This lichen, Parmotrema tinctorum, has leaf-like structures, so is foliose.This lichen, Caloplaca marina, grows like an orange crust coating the rock, so is crustose.This lichen, Caloplaca thallincola, grows like a crust, and in a pattern that radiates outward from the center, so has a crustose placodioid growth form.This lichen, Chrysothrix chlorina, grows like powder dusted on the rock so is a leprose lichen.This lichen, Collema nigrescens, is gelatinous, without internal structure for its parts.

A lichen is a composite organism that arises from algae or cyanobacteria (or both) living among filaments of a fungus in a symbiotic relationship. The combined life form has properties that are very different from the properties of its component organisms. Lichens come in many colors, sizes, and forms. The properties are sometimes plant-like, but lichens are not plants. Lichens may have tiny, leafless branches (fruticose), flat leaf-like structures (foliose), flakes that lie on the surface like peeling paint (crustose), or other growth forms. A macrolichen is a lichen that is either bush-like or leafy; all other lichens are termed microlichens. Here, "macro" and "micro" do not refer to size, but to the growth form. Common names for lichens may contain the word "moss" (e.g., "Reindeer moss", "Iceland moss"), and lichens may superficially look like and grow with mosses, but lichens are not related to mosses or any plant. Lichens do not have roots that absorb water and nutrients as plants do but like plants they produce their own food by photosynthesis using sunlight energy, from carbon dioxide, water and minerals in their environment. When they grow on plants, they do not live as parasites and only use the plants as a substrate.

近义、反义、联想词
近义词
n.
skin disease, disease of the skin, skin disorder, skin problem, skin condition, fungus

联想词
moss苔藓;fungi真菌;fungus真菌，霉菌;fungal真菌的;fern蕨类植物;ferns蕨类;flora植物群;algae藻类;vegetation植物;coral珊瑚;seaweed海藻，海草;
英英词典
lichen n.
  1. any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks
  2. any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.
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更新时间：2025/6/17 17:16:07