الأربعاء، 9 أبريل 2014

O vocabulary



Obesity (noun)
being overweight ,very fat.
Obesity is a high percentage of body fat, whereas a physically fit individual has a low percentage of body fat.
Objective (adjective)
expressing or dealing with facts or conditions as perceived without distortion by personal feelings, prejudices, or interpretations.

Researcher Lu Wang, of the University of Minnesota, and colleagues say previous studies have shown that the fatty acid composition of the blood provides an
objective estimate of the dietary intake of saturated fat for weeks to months before the sample is taken.

Obligate (verb)
to impose as a duty or moral obligation.
In different social situations, we are
obligated to adjust our use of words to fit the occasion.

Oblong (adjective)
deviating from a square, circular, or spherical form by elongation in one dimension.
he Earth was distorted into an
oblong shape before it gravitationally rebounded.

Obnoxious (adjective)
so objectionable as to bring out a feeling of extreme dislike.
People with
obnoxious personalities have difficulty in finding long-lasting friendships.

Obstacle (noun)
something that impedes or prevents entry or passage.
Concerning the method of natural association, it is learned when someone is faced with a memory
obstacle that reminds him of something in the past, he can use that image.

Occurrence (noun)
something significant that happens.
Landslides are a common
occurrence in the Santa Cruz Mountains.
Offensive (noun)
the act of attacking.
Realizing that he could not wait for another Federal advance, Johnston began concentrating forces at Corinth, Mississippi, where he hoped to take the
offensive and destroy General Grant's Army of the Tennessee before it could be joined by General Don Carlos Buell's Army of the Ohio.

Omen (noun)
an occurrence or phenomenon believed to portend a future event.
In the decade before the Spanish arrived in Mexico, Aztec Emperor Montezuma II and his people were filled with a sense of foreboding. A series of evil
omens had foretold of calamities to come. A fiery comet crossed the sky. The temple of Huitzilopochtli, the god of war, burst into flames. The Lake of Mexico boiled and rose, flooding into houses.

Ongoing (adjective)
actually in process, continuing, progressing.
One should never trust a single information source–stability evaluation is an
ongoing process.

Onset (noun)
the initial stage of a developmental process; the act of attacking.
Type II diabetes, which is adult
onset diabetes, is reduced by regular exercise because it improves the regulation of blood glucose.

Opt (verb)
to make a choice; especially : to decide in favor of something.
Home users who want an inexpensive system with decent graphics should
opt for one of the older-generation NVidia GeForce3 cards.

Optical (adjective)
of, relating to, or being objects that emit light in the visible range of frequencies .
In 1936, Einstein calculated that an observer on Earth, given the correct line of sight, might see multiple images of a single, distant object—a cosmic
optical illusion, so to speak.

Optimism (noun)
a tendency to expect a favorable outcome or to dwell on hopeful aspects .
An atmosphere of
optimism and a promise of prosperity among the settlers of Chattanooga caused the city to prosper from 2,000 in 1865 to 12,000 in 1877.
Optional (adjective)
not imposed on one by authority.
It is learned that the writing process has a minimum of four stages and that there is an
optional fifth stage of writing.
Oratorical (adjective)
of or relating to the art of public speaking.
As the boycott continued during 1956, King gained national prominence as a result of his exceptional
oratorical skills and personal courage.

Orbit (adjective)
of or relating to a course, process, or journey that ends where it began or repeats itself.
19th century astronomers made very careful observations of Mercury's
orbital parameters but could not adequately explain those using Newtonian mechanics.

Organism (noun)
something resembling a living thing in its complexity of
structure or functions.
Researchers have learned that many different
organisms can be conditioned to respond to practically any stimuli such as lights, sounds, or tastes.
Originate (verb)
to have as one’s home, place, or origin.
Sulfates, which
originate primarily in coal fired power plants, started rising around 1900.

Ornament (noun)
the act of furnishing with decorations.
Even department stores in some non-Christian countries are decorated with
ornaments during the Christmas season.

Oscillate (verb)
to move back and forth with a steady rhythm.
There is a special critical initial strength such that the field cannot decide whether to evaporate away or collapse to form a black hole. Instead it
oscillates increasingly rapidly, performing an infinite number of oscillations in a finite time.

Osmotic (adjective)
relating to the diffusion through a semi-permeable membrane typically separating a solvent and a solution that tends to equalize their concentrations.
Since saltwater fishes have blood with a lower concentration of salts than the surrounding seawater,
osmotic pressure tends to force water out of the body fluids and to raise the internal salt concentration.

Outcome (noun)
something brought about by a cause.
This
outcome is a reflection of strong sense of solidarity within the corporate peasant community, also apparent in the tendency for almost every man to remain within his village over his lifetime.

Outdated (adjective)
to make or become no longer in use; of a style or method formerly in style.
Several
outdated theories about the cause of autism have been proven to be false.

Outflow (noun)
the act of being in a state of motion, as air moving away from something.
The strength of the rain cooled
outflow from the mountain storms is critical to downstream mesoscale convective system development.

Outlaw (noun)
one that is unconventional or rebellious ; a lawless person or a fugitive from the law.
Gov. Bill Richardson scheduled a news conference Tuesday to detail how the state will aid an investigation launched by Lincoln County, where the Old West
outlaw made a dramatic escape from custody 122 years ago.

Outpost (noun)
a security detachment thrown out by a main body of troops to protect it from enemy surprise; an outlying or frontier settlement.
In addition to its African possessions, Carthage held a number of
outposts on the Spanish mainland.

Outreach (adjective)
reaching out or extending.
The Center for Earth and Planetary Studies (CEPS) is the scientific research unit within the Collections and Research Department of the National Air and Space Museum, Smithsonian Institution. CEPS performs original research and
outreach activities on topics covering planetary science, terrestrial geophysics, and the remote sensing of environmental change.

Outset (noun)
beginning, start.
From the
outset, The Church of Jesus Christ of Latter-day Saints was a missionary church.

Outstrip (verb)
to be greater or better than.
Even though the train is not the preferred method of transportation in the United States, in Europe it can compete with the airlines and cars, and in some cases even
outstrip them, as the most popular way to travel from one country to another.

Outwardly (adverb)
toward or on the outside; in regard to external appearance or action.
Some people with mental disorders have a tendency toward self–persecution, self– sabotage, and even violence (both self–inflicted and
outwardly directed).

Outweigh (verb)
to make up for the defects of.
The evolutionary selective advantages for language must have been very large to
outweigh such a disadvantage.

Overgraze (verb)
to feed on growing herbage, attached algae, or phytoplankton to the point of damaging vegetation cover.
The problem is one of environmental degradation; the land is
overgrazed and the kangaroos themselves suffer pretty badly once all the food is gone for them.

Overly(verb)
lying on or over.
Tsunamis can be generated when the sea floor abruptly deforms and vertically displaces the
overlying water.

Override(verb)
occupying a more elevated or superior position; dominating.
The court emphasized that race cannot be the
overriding factor, but a majority acknowledged a broad social value in encouraging all races to learn and work together.

Over-the-counter(adjective)
sold lawfully without prescription.
The names of all medicines you are currently taking, including both
over-the-counter and prescription medication as well as any dietary supplements. It is important for your doctor to know this information in order to prescribe the medicine that will be the most helpful.

Overturn(verb)
to turn or cause to turn from a vertical or horizontal position.
The Vikings quickly
overturned the boats and killed all but one Indian, who was able to get away.

Overwhelmingly(adverb)
convincingly so as to have little doubt.
The evidence seems to
overwhelmingly state that there is indeed a critical period by which learning must commence in order to afford the learner the chance to achieve native like capabilities.

Owe (verb)

on account of; as a result of, through.
The scientific question is whether the chimps' abilities are homologous to human language–that is, whether the two systems show the same basic organization
owing to escent from a single system in their common ancestor.
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