primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves (Freq. 6)
Syn: ↑alga
Derivationally related forms: ↑algal (for: ↑alga)
Hypernyms: ↑protoctist

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\\ˈal(ˌ)jē\ noun plural
Usage: capitalized
Etymology: New Latin, from Latin, plural of alga
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.
/al"jee/,, sing. alga /-geuh/.
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.
[ < NL, pl. of L alga seaweed]

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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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algae UK [ˈældʒiː] UK [ˈælɡiː] US [ˈældʒi] noun [plural] biology
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:
[algae algal] mid 16th cent.: from Latin, seaweed.

Useful english dictionary. 2012.

Look at other dictionaries:

  • algae — n. plural of {alga}. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • algae — [al′jē΄] pl.n. sing. alga [al′gə] [pl. of L alga, seaweed < IE base * el , *ol , to be moldy, putrid > Swed ul, rancid, Du uilig, rotten] any of several divisions of simple photosynthetic organisms, esp. certain thallophytes, variously one… …   English World dictionary

  • Algae — См. Водоросли (Источник: «Словарь терминов микробиологии») …   Словарь микробиологии

  • Algae — (Algen), erste Klasse im Endlicherschen Systeme; Ursprosser des Wassers, aus (verlängerten) Zellen gebildet, welche einzeln oder zu einem Gewebe verschmolzen sind u. in letzterem Falle der Pflanze ein faden , zweig oder blattartiges Ansehen geben …   Pierer's Universal-Lexikon

  • algae — (n.) (plural), 1794, from alga (singular), 1550s, from L. alga seaweed, of uncertain origin, perhaps from a PIE root meaning to putrefy, rot …   Etymology dictionary

  • algae — [n] rootless, leafless plants living in water dulse, kelp, scum, seaweed; concept 429 …   New thesaurus

  • algae — algal, adj. /al jee/,, sing. alga / geuh/. 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… …   Universalium

  • Algae — For other uses, see Algae (disambiguation) and Alga (disambiguation). Algae Laurencia, a marine genus of Red Algae from Hawaii. Scientific classification …   Wikipedia

  • algae — A non taxonomic term used to group several phyla of the lower plants, including the Rhodophyta (red algae), Chlorophyta (green algae), Phaeophyta (brown algae), and Chrysophyta (diatoms). Many algae are unicellular or consist of simple… …   Dictionary of molecular biology

  • algae — Synonyms and related words: 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,… …   Moby Thesaurus