Englishfor English speakers
Bi
—
noun
(= bismuth)
a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
polar
—
adjective
having a pair of equal and opposite charges
—
adjective
(= diametric, diametrical, opposite)
characterized by opposite extremes; completely opposed
in diametric contradiction to his claims
diametrical (or opposite) points of view
opposite meanings
extreme and indefensible polar positions
—
adjective
of or existing at or near a geographical pole or within the Arctic or Antarctic Circles
polar regions
—
adjective
located at or near or coming from the earth's poles
polar diameter
polar zone
a polar air mass
Antarctica is the only polar continent
—
adjective
(= pivotal)
being of crucial importance
a pivotal event
Its pivotal location has also exposed it to periodic invasions
— Henry Kissinger
the polar events of this study
a polar principal
—
adjective
(= arctic, frigid, gelid, glacial, icy)
extremely cold
an arctic climate
a frigid day
gelid waters of the North Atlantic
glacial winds
icy hands
polar weather
ionization
—
noun
(= ionisation)
the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)
the ionization of a gas
—
noun
the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas
tube
Noun
—
A tube is a long object with a hole from one end to the other. The ends may be closed or open.
The high pressure forces the water through the tube.
Toothpaste comes in a tube.
—
The Tube is the underground train system in London, England.
tube
Verb
—
If you tube, you float on an inner tube.
We went white-water tubing on the Yukon River.