natural history

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natural history

1. The study and description of organisms and natural objects, especially their origins, evolution, and interrelationships.
a. A collection of facts about the development of a natural process or entity: the natural history of tuberculosis.
b. A work or treatise containing such facts.

Natural History

Herbal medicine
A 37-volume collection of works on plants written by Pliny (the Elder) of the Greek empire, which served as a source of information for herbalists until the 17th century.

natural history (of disease)

The expected or predictable course of an untreated illness. The knowledge of the expected course of a disease is usually based on prior study of the effects of the illness on a large group of patients over time.
See: disease progression
See also: history


occurs in nature, without the intervention of humans.

natural experiments
occur by chance when all variables for a population are constant except one, which is different for one large part of the population compared with the other, e.g. when half of a flock comes from one climate and the other half is a local resident in another climate.
natural focus
the ecology that is best suited to a biological system, e.g. an individual insect-borne disease; the area in which the disease naturally flourishes best; an ecological niche.
natural history
history of a process or organism as it occurs in nature, e.g. course of a disease from infection to resolution.
natural killer (NK) cell
see natural killer cell.
natural selection
selection occurring in nature, without any human intervention, direct or indirect.
natural ventilation
ventilation without the use of artificially induced energy and the machines which it drives; the forces used are wind and the exchange of heat from within the barn and the external air, controlled by ventilation devices in the walls and the ceiling.
References in periodicals archive ?
The Forgotten Naturalist is now available in Wallace's home town at Neath Museum, open TuesdaySaturday from 10am-4pm.
If we genuinely believe the whole religious picture of God/soul/eternal peace, then it's likely we will find more emotional security than the hard-headed naturalist, since under these beliefs the individual is preserved in some form.
Sets of all available * back issues of The Southwestern Naturalist from 1956 to 1994 (Volumes 1-39) are on sale for US$100 plus US$25 shipping and handling.
Training for volunteer naturalists is in September.
As a collector he was assiduous and indefatigable," said a memorial in The Naturalist.
It's not far from PEEC to the Delaware River, and the center's naturalist, Pat Scheuer, took us on a three-hour Kittatinny Canoes float from Milford to Dingmans Ferry, during which we encountered blue herons, cormorants, kingfishers and merganser ducks, not to mention bright red cardinal flowers.
4 -- 6) Sights off the beaten path on Catalina Island include a soapstone quarry, top, pointed out by naturalist Amy Busch on a monthly hike; the island's museum, above left, which features reminders of the era of steamship travel; and a golf course with some unusual playing conditions, above right.
The point man for Wintergreen's efforts to co-exist with nature is staff naturalist Doug Coleman.
Recently, the company announced account acquisitions, a move into larger quarters, and a joint venture with naturalist.
The 2012 recipient was "Critical thermal maxima of captive-bred Devil's River minnows (Dionda diaboli), The Southwestern Naturalist 55(4): 544-550, by J.
Hiker, backpacker, and aspiring naturalist Peter Greene provides text filled with information about the formation of major ranges as well as their recreational opportunities, ecology, true tales of exploration, and pieces of lore.