noun
primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves (Freq. 6)
• Syn: ↑alga
• Hypernyms: ↑protoctist
• Hyponyms:
↑seaweed, ↑golden algae, ↑yellow-green algae, ↑diatom, ↑confervoid algae, ↑brown algae, ↑euglenoid, ↑euglenophyte, ↑euglenid, ↑green algae, ↑chlorophyte, ↑chlorella, ↑red algae, ↑cryptomonad, ↑cryptophyte
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\\ˈal(ˌ)jē\ noun pluralUsage: capitalized
in some classifications : a major group of lower plants that is often included in Thallophyta, that comprises usually photosynthetic plants of extremely varied morphology and physiology, and that is now commonly considered to be a heterogeneous assemblage — see alga, fungi
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—algal, adj.
any of numerous groups of chlorophyll-containing, mainly aquatic eukaryotic organisms ranging from microscopic single-celled forms to multicellular forms 100 ft. (30 m) or more long, distinguished from plants by the absence of true roots, stems, and leaves and by a lack of nonreproductive cells in the reproductive structures: classified into the six phyla Euglenophyta, Crysophyta, Pyrrophyta, Chlorophyta, Phaeophyta, and Rhodophyta. Cf. blue-green algae.
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Alˈgae plural noun (botany)
A group (usu classified separately from other plants) of prokaryotic and eukaryotic photosynthetic organisms without roots, stems or leaves, the seaweeds and related forms
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Main Entry: ↑alga
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plants that have no roots, stems, or leaves and grow in water or in other wet places
Thesaurus: plants that grow in waterhyponym
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algae [ˈældʒiː] [ˈældʒiː] [ˈælɡiː] [ˈælɡiː] noun uncountable, plural (sing. alga [ˈælɡə] ; [ˈælɡə] )(technical)
very simple plants, such as ↑seaweed, that have no real leaves, ↑stems or roots, and that grow in or near water
Derived Word: ↑algal
Word Origin:
Useful english dictionary. 2012.