- nettle cells
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see nematocysts.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Wood nettle — Wood Wood, n. [OE. wode, wude, AS. wudu, wiodu; akin to OHG. witu, Icel. vi?r, Dan. & Sw. ved wood, and probably to Ir. & Gael. fiodh, W. gwydd trees, shrubs.] [1913 Webster] 1. A large and thick collection of trees; a forest or grove; frequently … The Collaborative International Dictionary of English
Cnidaria — Temporal range: 580–0 Ma … Wikipedia
Polyp — This article is about the biological structure. For the medical condition, see Polyp (medicine). For the cartoonist, see P J Polyp. Gorgonian polyps in a reef aquarium. A polyp in zoology is one of two forms found in the phylum Cnidaria, the… … Wikipedia
cnida — n. [Gr. nema, thread; kystis, bladder] (CNIDARIA) Intracellular organelles that function in defense and capture of prey by injecting a toxin; in hydras, they function in adhesion to the bottom; also called stinging cells, nettle cells, or thread… … Dictionary of invertebrate zoology
urticaria — nettle rash; = hives; n. an itchy rash resulting from the release of histamine by mast cells. Individual swellings (weals) appear rapidly and resolve spontaneously within hours. Acute urticaria is common and represents an immediate response to… … The new mediacal dictionary
Rosales — ▪ plant order Introduction the rose order of dicotyledonous flowering plants, containing 9 families, 261 genera, and more than 7,700 species. Rosales, which is in the Rosid I group among the core eudicots, is related to other orders with members … Universalium
Jellyfish — For other uses, see Jellyfish (disambiguation). Jellyfish Temporal range: 505–0 Ma … Wikipedia
Hay fever — DiseaseDisorder infobox Name = Hay fever Caption = Pollen grains from a variety of common plants can cause hay fever . DiseasesDB = 31140 ICD10 = ICD10|J|30|1|j|30 ICD9 = ICD9|477 OMIM = 607154 MedlinePlus = 000813 eMedicineSubj = ent… … Wikipedia
angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) … Universalium
Achillea millefolium — Yarrow redirects here. For other uses, see Yarrow (disambiguation). Achillea millefolium near Amiens, France … Wikipedia