sphero-, spher-, -sphere-

(Greek: ball, round, around; globe, global; body of globular form; by extension, circular zone, circular area)

earth spinning.
atmospheric turbidity (s) (noun), atmospheric turbidities (pl)
Haziness in the atmosphere due to aerosols; such as, dust: "When atmospheric turbidity is zero, the sky has no dust, as measured by a sun photometer; which is an instrument that measures luminous intensity or brightness, luminous flux, light distribution, color, etc.; usually, by comparing the light emitted by two sources, one source having certain specified standard characteristics."
atmospheric turbulence (s) (noun), atmospheric turbulences (pl)
Random fluctuations of the atmosphere often causing major deformations of its fluid flow: "Atmospheric turbulence involves the mixing of warm and cold air in the atmosphere by wind, which causes clear-air turbulence that is experienced during airplane flight; as well as, poor astronomical vision or the blurring of images seen through the atmosphere."
atmospheric window (s) (noun), atmospheric windows (pl)
1. A range of wavelengths in which the atmosphere is partly or largely transparent.
2. A wavelength band in the electromagnetic spectrum that is able to pass through the earth's atmosphere with relatively little attenuation through absorption, scattering, or reflection.
atmospherics, spherics
1. Electromagnetic radiation produced by natural phenomena; such as, lightning.
2. Atmospheric disturbances of electrical origin causing interference with communication in wireless telegraphy, television, etc.
3. Atmospheric conditions caused by electromagnetic disturbances; especially, as they affect radio transmission.
1. The noises in a radio receiver or randomly distributed white spots or bands on the screen of a television receiver, caused by interferences from natural electromagnetic disturbances in the atmosphere and the study of such phenomena.
2. The moods or atmospheres; the ambiances: "Fortunately, the atmosphericses of the conference were friendlier than we had anticipated."
3. Unusual conditions in the atmosphere; such as, those caused by lightning, or the continuous short, sharp noises produced by a radio during these conditions.
An optical system used to simulate images of atmospheric phenomena; such as, cloud formations, storms, and day and night, on the inside of a dome and the term for the building in which this projection system is used.
The oxygenation of venous blood.
1. The scientific investigation of the atmosphere or a written description about it.
2. The scientific study of the phenomena of the atmosphere of a planet, a satellite, or of the sun.

More specifically, the study of the earth's atmosphere; as in, meteorology.

That part of the biosphere in which energy is fixed by photosynthesis in green plants.
1. The internal substance of the earth enclosed by the lithosphere.
2. The central core of the earth.
bathysphere (s) (noun), bathyspheres (pl)
A round watertight diving chamber with observation windows: A bathysphere was usually lowered by cables from a ship and it was formerly used to study deep-sea life.

The bathysphere is also described as a circular tethered metal compartment with an inside diameter of less than three feet in which the deep-sea pioneers cramped themselves for several hours during each immersion.

A kind of diving globe or ball for deep-sea observations.
© ALL rights are reserved.

Go to this Word A Day Revisited Index
so you can see more of Mickey Bach's cartoons.

1. A device for obtaining a record of temperature against depth (pressure) in the ocean from a ship that is underway or in motion.
2. An instrument for recording water temperature as compared to depth.
That part of the lithosphere within which living organisms can exist.
1. All of the regions of the earth’s crust, waters, and atmosphere that are occupied by living organisms; occasionally, the living organisms themselves.
2. The realm or sphere or life in which the total biological process takes place.

The earth's surface and the top layer of the hydrosphere (water layer) have the greatest density of living organisms.

The geosphere, or nonliving world, is made up of the lithosphere (solid earth or stone), hydrosphere, and atmosphere.

3. In Arizona, USA, an enclosed, supposedly self-contained experimental eco-system designed to provide environmental insights.

The initial two-year test, started in 1991, was called "Biosphere 1"; the second one was called "Biosphere 2", and was started in 1994.

Biosphere of Habitats
The zone at and near the earth's surface in which all living things are located:

Ranging from submicroscopic viruses to giant sequoia trees, this horde of organisms has adapted to almost every kind of environment, from hot springs to glacial ice.

Such habitats involve the interactions of plants and animals with various parts of the earth and are involved in many important earth processes.

Coal and petroleum have been formed from the remains of prehistoric organisms.

Bacteria played an essential role in the development of certain types of iron ore.

Finally, the study of fossils has provided a great deal of information about earth's history and the development of life.

—This section was compiled from a presentation in
The Planet We Live On: Illustrated Encyclopedia of the Earth Sciences;
Cornelius S. Hurlbut, Jr., Editor; Harry N. Abrams, Inc., Publishers;
New York; 1976, page 94.

Also see "The Development and Explanations of Life and Its Characteristics for additional information related to this subject.

Related ball, sphere-word units: glob-, glom-; hemoglobin-.