Vocabulary English-English With R Part 4
Rigid (adjective)
incapable of changing or being modified
- Intense heat changes the nature of clay so that it becomes stony and rigid.
Rigorous (adjective)
not deviating from correctness, accuracy, or completeness
- The standards of validity for experimental research are so rigorous that it may take a researcher several years to get his results published in a scholarly journal.
Rim (noun)
the upper or outer edge of something more or less circular
- The bicyclists raced around the southern rim of the Grand Canyon
Rip (verb)
to separate or pull apart by force
- To fully exterminate an ant colony, the must be located and treated—and in some cases, walls must be ripped open.
Ripple (noun)
a small wave or series of waves; a gentle rising and falling sound that spreads through a group of people
- Muscular contractions cause a ripple-like movement that carries the contents down the small intestine - somewhat like a conveyor belt.
Risk (noun)
a situation involving exposure to danger
- Another group doesn't want to risk repercussions while perhaps another group just doesn't care one way or the other.
Ritual (noun)
a religious or solemn ceremony involving a series of actions performed according to a set order
- There are seven sacraments or rituals in the Catholic Church.
Rivet (noun)
a headed pin or bolt used for uniting two or more pieces by passing the shank through a hole in each piece and then beating or pressing down the other end to make a second head Second only to iron and steel,
- aluminum is used in the construction of lawn chairs, baseball bats, air and space vehicles, and even the rivets that hold them together.
Root (noun)
a rhizome; a plant on to which another variety is grafted
- Born in Atlanta on January 15, 1929, Dr. Martin Luther King's roots were formed in the African-American Baptist church.
Rotate (verb)
move in a circle round an axis
- It is now known that Mercury rotates three times in two of its years.
Rotation (noun)
the action or process of rotating
- The Moon's axis of rotation is nearly perpendicular to the plane of its orbit around the Sun, so the Sun always appears at or near the horizon in the polar regions of the Moon.
Rough (adjective)
having an uneven or irregular surface, not smooth or level; approximate
- While these data are at best rough estimates, there is one certainty we spent only a tiny percentage of the $800 billion on prevention.
Route (noun)
a way or course taken in getting from a starting point to a destination
- Grapevine Canyon is one of the three eastern exit routes from Death Valley, and the location of Scotty's Castle.
Routine (noun)
a sequence of actions regularly followed; a fixed unvarying program
- This is important in sports such as track and field and football, as well as routine activities such as lifting groceries or moving furniture.
Rubbish (noun)
waste material; refuse or litter
- It lays its eggs in rubbish heaps, rotting trees trunks, sawdust, and other vegetative matter.
Rubble (noun)
broken fragments, especially of a building
- During the San Francisco earthquake at the beginning of the 20th century, many buildings were reduced to nothing more but a pile of rubble.
Rudimentary (adjective)
involving or limited to basic principles
- To show why the chimpanzees signaling system is not homologous to human language, Zachary says that chimpanzees require massive regimented teaching sequences contrived by humans to acquire quite rudimentary abilities.
Rule out (verb)
to keep from being admitted, included, or considered
- Eventually, experimental tests by Army Majors William Gorgas and Walter Reed ruled out dirt and poor sanitation conditions as causes of Yellow Fever, and a mosquito was the suspected carrier.
Run (verb)
to do in a formal manner or according to prescribed ritual: do
- Picking up on Safronov's general ideas, Hartmann and Davis ran calculations of the rate of growth of the 2nd-largest, 3rd largest, etc., bodies in the general vicinity of Earth, as the Earth itself was growing.
Runoff (noun)
the portion of precipitation on land that ultimately reaches streams often with dissolved or suspended material
- The ground is completely saturated, so everything is runoff. We could have flash floods just about any time.
Rural (adjective)
relating to or characteristic of the countryside rather than the town
- Marriage patterns in rural Turkey are noticeably influenced by endogamous preferences within both villages and kinship groups.
Rush (verb)
move or act with urgent haste; transport or produce with urgent haste
- In the mid-1870s, gold was discovered, and press reports brought a rush of prospectors.
Rustle (verb)
to act or move with energy or speed; to forage food
- The big ears of a bat detect the returning echoes, as well as the sounds of prey, such as insects rustling in the leaves.
Demikian, semoga bermanfaat.
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