adventitious aid

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• Pietro and Ambrogio Lorenzetti —     Pietro and Ambrogio Lorenzetti     † Catholic Encyclopedia ► Pietro and Ambrogio Lorenzetti     Sienese painters. The time of their birth and death is not known. Their dated works extend over a period of thirty years, from 1316 to 1348.… …   Catholic encyclopedia

• 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

• Glossary of plant morphology terms — Biologists that study plant morphology use a number of different terms to describe plant organs and parts that can be observed with the human eye using no more than a hand held magnifying lens. These terms are used to identify and classify plants …   Wikipedia

• B. F. Skinner — Burrhus Frederic Skinner Born March 20, 1904(1904 03 20) Susquehanna, Pennsyl …   Wikipedia

• Glossary of botanical terms — Many of the terms used in Wikipedia glossaries (often most) are already defined and explained within Wikipedia itself. However, lists like the following indicate where new articles need to be written and are also useful for looking up and… …   Wikipedia

• Synesthesia — For other uses, see Synesthesia (disambiguation). How someone with synesthesia might perceive certain letters and numbers. Synesthesia (also spelled synæsthesia or synaesthesia, plural synesthesiae or synaesthesiae), from the ancient Greek σύν… …   Wikipedia

• Animal colouration — has been a topic of interest and research in biology for well over a century. Colours may be cryptic (functioning as an adaptation allowing the prevention of prey detection; aposematic (functioning as a warning of unprofitability) or may be the… …   Wikipedia

• horticulture — horticultural, adj. horticulturist, n. /hawr ti kul cheuhr/, n. 1. the cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants. 2. the science and art of cultivating such plants. [1670… …   Universalium

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

• Ericales — ▪ plant order Introduction   rhododendron order of flowering plants, containing 25 families, 346 genera, and more than 11,000 species.       The relationships of the order are unclear. It belongs to neither of the two major asterid groups… …   Universalium

• List of sexology topics — This is a list of topics related to sexology, human sexuality and marriage customs, and related topics such as human sexual anatomy, reproductive biology, andrology, gynaecology, obstetrics and, where relevant, anthropology. Note that this list… …   Wikipedia