Algae

5 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

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

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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

From WordNet (r) 2.0 [wn]:

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

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  67 Moby Thesaurus words for "algae":
     Ectocarpales, Iceland moss, Irish moss, Phaeophyceae, autophyte,
     bean, bracken, brown algae, climber, conferva, confervoid, creeper,
     diatom, dulse, fern, fruits and vegetables, fucoid, fucus, fungi,
     fungus, grapevine, green algae, gulfweed, herb, heterophyte, ivy,
     kelp, legume, lentil, liana, lichen, liverwort, mold, molds, moss,
     mushroom, parasite, parasitic plant, pea, perthophyte,
     phytoplankton, plankton, planktonic algae, plant families,
     pond scum, puffball, pulse, red algae, reindeer moss, rockweed,
     rust, saprophyte, sargasso, sargassum, scum, sea lentil, sea moss,
     sea wrack, seaweed, smut, succulent, thallogens, toadstool, vetch,
     vine, wort, wrack