英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

algae    音标拼音: ['ældʒi]
n. 藻类,海藻

藻类,海藻

algae
n 1: primitive chlorophyll-containing mainly aquatic eukaryotic
organisms lacking true stems and roots and leaves [synonym:
{alga}, {algae}]

algae \algae\ n.
plural of {alga}.
[WordNet 1.5]


Alga \Al"ga\, n.; pl. {Alg[ae]} or {algae}. [L., seaweed.]
(Bot.)
A kind of seaweed; pl. the class of cellular cryptogamic
plants which includes the black, red, and green seaweeds, as
kelp, dulse, sea lettuce, also marine and fresh water
conferv[ae], etc. The algae are primitive
chlorophyll-containing mainly aquatic eukaryotic organisms
lacking true stems and roots and leaves.
[1913 Webster WordNet 1.5]


Cryptogamia \Cryp`to*ga"mi*a\ (kr?p`t?-g?"m?-?), n.; pl.
{Cryptogami[ae]} (-?). [NL., fr. Gr. krypto`s hidden, secret
ga`mos marriage.] (Bot.)
The series or division of flowerless plants, or those never
having true stamens and pistils, but propagated by spores of
various kinds.
[1913 Webster]

Note: The subdivisions have been variously arranged. The
following arrangement recognizes four classes: -- I.
{{Pteridophyta}, or {Vascular Acrogens}.} These include
Ferns, {Equiseta} or Scouring rushes, {Lycopodiace[ae]}
or Club mosses, {Selaginelle[ae]}, and several other
smaller orders. Here belonged also the extinct coal
plants called {Lepidodendron}, {Sigillaria}, and
{Calamites}. II. {{Bryophita}, or {Cellular Acrogens}}.
These include {Musci}, or Mosses, {Hepatic[ae]}, or
Scale mosses and Liverworts, and possibly
{Charace[ae]}, the Stoneworts. III. {{Alg[ae]}}, which
are divided into {Floride[ae]}, the Red Seaweeds, and
the orders {Dictyote[ae]}, {Oospore[ae]},
{Zoospore[ae]}, {Conjugat[ae]}, {Diatomace[ae]}, and
{Cryptophyce[ae]}. IV. {{Fungi}}. The molds, mildews,
mushrooms, puffballs, etc., which are variously grouped
into several subclasses and many orders. The {Lichenes}
or Lichens are now considered to be of a mixed nature,
each plant partly a Fungus and partly an Alga.
[1913 Webster] Cryptogamic
Cryptogamian


请选择你想看的字典辞典:
单词字典翻译
algae查看 algae 在百度字典中的解释百度英翻中〔查看〕
algae查看 algae 在Google字典中的解释Google英翻中〔查看〕
algae查看 algae 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Algae - Encyclopedia. com
    Algae (singular: alga) are photosynthetic, eukaryotic organisms that do not develop multicellular sex organs Algae can be unicellular, or they may be large, multicellular organisms Algae can occur in salt or fresh waters, or on the surfaces of moist soil or rocks The multicellular algae develop specialized tissues, but they lack the true
  • Green Algae - Encyclopedia. com
    Chlorophyta (green algae) Division of algae which are typically green in colour In common with higher land plants, green algae include chlorophylls a and b among their principal pigments, have cellulose as the main constituent of cell walls, and form food reserves of starch Consequently it is believed that the ancestors of land plants must
  • Blue-green Algae - Encyclopedia. com
    Blue-green algae [1] Blue-green algae [2] are actually a type of bacteria that is known as cyanobacteria In their aquatic habitat, cyanobacteria are equipped to use the sun's energy to manufacture their own food through photosynthesis
  • Protista - Encyclopedia. com
    The golden algae (Chrysophyta) and brown algae (Phaeophyta) include many familiar seaweeds easily found on rocky coasts Kelp is a gigantic marine brown alga ( Macrocystus ) that grows up to 30 meters (100 feet) long and forms dense "forests" in some coastal waters
  • Evolution Of Plants - Encyclopedia. com
    Algae in Plant Evolution Photosynthetic protists (commonly called algae) are a diverse group of organisms and are divided into several phyla Many are unicellular, including most euglenoids (phylum Euglenophyta) and dinoflagellates (Dinophyta), and some diatoms (Bacillariophyta) and green algae (Chlorophyta)
  • Pyrrophyta - Encyclopedia. com
    Cryptomonads themselves are the evolutionary result of endosymbiosis, and are chimeric species that evolved from ancestral red algae and a non-photosynthetic host that retained the red alga nucleus under the form of a bead-like nucleomorph chromosome The highly condensed chromosome of this Pyrrophyta consists of three different bead-like
  • Dinoflagellata - Encyclopedia. com
    dinoflagellates A division (Dinoflagellata) of protists that are heterotrophs but closely allied to brown algae and diatoms (they are sometimes classified as algae) Many have brown or yellow chromoplasts containing xanthophyll and chlorophylls a and c; others are colourless Typically, dinoflagellates have two flagella, one propelling water to
  • Diatoms - Encyclopedia. com
    Ecologically vital, algae account for roughly half of photosynthetic production of organic material on Earth in both freshwater and marine environments Algae exist either as single cells or as multicellular organizations Diatoms are microscopic, single-celled algae that have intricate glass-like outer cell walls partially composed of silicon
  • Protozoa - Encyclopedia. com
    The amoeba, for example, is capable of detecting chemicals given off by potential food particles such as diatoms, algae, bacteria, or other protozoa As the cell wall has no definite shape, the cytoplasm can extrude to form pseudopodia (Greek: pseudes , false; pous , foot) in various sizes and at any point of the cell surface





中文字典-英文字典  2005-2009