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thalli - 5 dictionary results

thal⋅lus

[thal-uhs]
–noun, plural thal⋅li [thal-ahy] , thal⋅lus⋅es. Botany, Mycology.
a simple vegetative body undifferentiated into true leaves, stem, and root, ranging from an aggregation of filaments to a complex plantlike form.

Origin:
1820–30; < NL < Gk thallós young shoot, twig
thal·li   (thāl'ī)   
n.  A plural of thallus.
thal·lus   (thāl'əs)   
n.   pl. thal·li (thāl'ī) or thal·lus·es
A plant body undifferentiated into stem, root, or leaf.

[Latin, green stalk, from Greek thallos, from thallein, to sprout.]

Main Entry: thalli
plural of THALLUS
thallus   (thāl'əs)  Pronunciation Key 
Plural thalli (thāl'ī)
A type of body found among plants and fungi that is not differentiated into roots, stems, or leaves. Thalli are found among lichens, mosses, liverworts, and many algae, as well as the gametophyte generations of horsetails and ferns, which have rhizoids but not true roots.
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