Dictionary    Maps    Thesaurus    Translate    Advanced >   


Tip: Click Thesaurus above for synonyms. Also, follow synonym links within the dictionary to find definitions from other sources.

1. WordNet® 3.0 (2006)
Thallophyta
    n 1: used only in former classifications: comprising what is now
         considered a heterogeneous assemblage of flowerless and
         seedless organisms: algae; bacteria; fungi; lichens

2. The Collaborative International Dictionary of English v.0.48
Thallophyta \Thal*loph"y*ta\, n. pl. [NL. See Thallophyte.]
   (Bot.)
   A phylum of plants of very diverse habit and structure,
   including the algae, fungi, and lichens. The simpler forms,
   as many blue-green algae, yeasts, etc., are unicellular and
   reproduce vegetatively or by means of asexual spores; in the
   higher forms the plant body is a thallus, which may be
   filamentous or may consist of plates of cells; it is commonly
   undifferentiated into stem, leaves, and roots, and shows no
   distinct tissue systems; the fronds of many algae, however,
   are modified to serve many of the functions of the
   above-named organs. Both asexual and sexual reproduction,
   often of a complex type, occur in these forms. The
   Thallophyta exist almost exclusively as gametophytes, the
   sporophyte being absent or rudimentary. By those who do not
   separate the Myxophyta from the Tallophyta as a distinct
   phylum the latter is treated as the lowermost group in the
   vegetable kingdom.
   [Webster 1913 Suppl.]

Common Misspellings >
Most Popular Searches: Define Misanthrope, Define Pulchritudinous, Define Happy, Define Veracity, Define Cornucopia, Define Almuerzo, Define Atresic, Define URL, Definitions Of Words, Definition Of Get Up, Definition Of Quid Pro Quo, Definition Of Irreconcilable Differences, Definition Of Word, Synonyms of Repetitive, Synonym Dictionary, Synonym Antonyms. See our main index and map index for more details.

©2011-2024 ZebraWords.com - Define Yourself - The Search for Meanings and Meaning Means I Mean. All content subject to terms and conditions as set out here. Contact Us, peruse our Privacy Policy