What does rhizoid mean?

Definitions for rhizoid
ˈraɪ zɔɪdrhi·zoid

This dictionary definitions page includes all the possible meanings, example usage and translations of the word rhizoid.

Princeton's WordNet

  1. rhizoidnoun

    any of various slender filaments that function as roots in mosses and ferns and fungi etc


  1. rhizoidnoun

    A rootlike structure in fungi and some plants that acts as support and/or aids the absorption of nutrients.


  1. rhizoid

    A rhizoid is a root-like structure found in various types of fungi, algae, and mosses. They are typically single cells or filaments of cells that help anchor the organism to a substrate and absorb water and nutrients from the environment. Rhizoids do not have the specialized tissue found in true roots and thus are different from them.

Webster Dictionary

  1. Rhizoidnoun

    a rootlike appendage

  2. Etymology: [Gr. root + -oid.]


  1. Rhizoid

    Rhizoids are simple hair-like protuberances that extend from the lower epidermal cells of bryophytes, Rhodophyta and pteridophytes. They are similar in structure and function to the root hairs of vascular land plants. Similar structures are formed by algae and some fungi. Rhizoids are formed from single cells, whereas roots are multicellular organs composed of multiple tissues that collectively carry out a common function. Plants originated in water, from where they gradually migrated to land during their long course of evolution. In water or near it, plants could absorb water from their surroundings, with no need for any special absorbing organ or tissue. Additionally, in the primitive states of plant development, tissue differentiation and division of labor was minimal, thus the requirement for specialized water absorbing tissue was not required. Once plants colonized land however, they required specialized tissues to absorb water efficiently, and also to anchor themselves to the land. Rhizoids absorb water by capillary action, in which water moves up between threads of rhizoids and not through each of them as it does in roots. In fungi, rhizoids are small branching hyphae that grow downwards from the stolons that anchor the fungus to the substrate, where they release digestive enzymes and absorb digested organic material. That is why fungí are called heterotrophs by absortion. In land plants, rhizoids are trichomes that anchor the plant to the ground. In the liverworts, they are absent or unicellular, but multicelled in mosses. In vascular plants they are often called root hairs, and may be unicellular or multicellular.

Chambers 20th Century Dictionary

  1. Rhizoid

    rī′zoid, adj. root-like.—n. a filamentous organ like a root developed on all kinds of thalli, and on moss-stems.—adjs. Rhizoi′dal, Rhizoi′dēous. [Gr. rhizō-dēs, root-like—rhiza, a root.]

Matched Categories

How to pronounce rhizoid?

How to say rhizoid in sign language?


  1. Chaldean Numerology

    The numerical value of rhizoid in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of rhizoid in Pythagorean Numerology is: 8

Translations for rhizoid

From our Multilingual Translation Dictionary

Get even more translations for rhizoid »


Find a translation for the rhizoid definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Use the citation below to add this definition to your bibliography:


"rhizoid." Definitions.net. STANDS4 LLC, 2024. Web. 19 May 2024. <https://www.definitions.net/definition/rhizoid>.

Discuss these rhizoid definitions with the community:


    Are we missing a good definition for rhizoid? Don't keep it to yourself...

    Free, no signup required:

    Add to Chrome

    Get instant definitions for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant definitions for any word that hits you anywhere on the web!

    Browse Definitions.net


    Are you a words master?

    the official who holds an office
    A soft-witted
    B incumbent
    C epidemic
    D aculeate

    Nearby & related entries:

    Alternative searches for rhizoid: