9 4 noun
n
noun
• a light strong brittle grey toxic bivalent metallic element
Example sentence • In its pure form, beryllium is a steel-gray, strong, lightweight, and brittle alkaline earth metal.
8 4 noun
n
noun
• a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
Example sentence • Many aircraft and spacecraft use titanium for its durability.
6 3 noun
n
noun
• a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
Example sentence • The discovered ores of cerium are usually combined with other rare earth elements.
9 4 noun
n
noun
• an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
Example sentence • Scientists use deuterium in nuclear reactors to study fusion reactions.
8 4 noun
n
noun
• any of numerous plants of the family Geraniaceae
Example sentence • I planted a beautiful geranium in my garden.
6 3 noun, adjective
n, adj
noun
• a means or instrumentality for storing or communicating information
adjective satellite
• around the middle of a scale of evaluation
Example sentence • I prefer to paint with oil as my medium .
10 4 noun
n
Example sentence • The construction of the Great Wall of China took over a millennium to complete.
7 3 noun
n
noun
• a large structure for open-air sports or entertainments
Example sentence • The stadium was filled with cheering fans.
9 3 noun
n
noun
• a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
Example sentence • Consuming excessive amounts of strontium can lead to health complications.
6 2 noun
n
noun
• a gathering of the minimal number of members of an organization to conduct business
Example sentence • A quorum of at least half the members is required for a valid vote.
4 1 verb
v
noun
• the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
verb
• move toward, travel toward something or somebody or approach something or somebody
Example sentence • I will come to your house later today.
8 4 noun
n
noun
• the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion
Example sentence • The soil test revealed high levels of ammonium .
8 4 noun
n
noun
• a tank or pool or bowl filled with water for keeping live fish and underwater animals
Example sentence • The aquarium was filled with colorful tropical fish.
6 3 noun
n
noun
• any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
Example sentence • The hotel lobby featured a beautiful atrium .
7 3 noun
n
noun
• a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
Example sentence • Milk and dairy products are excellent sources of calcium .
8 3 noun
n
noun
• a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
10 4 noun
n
noun
• an association of companies for some definite purpose
Example sentence • The consortium of universities will collaborate on a research project.
7 3 noun
n
noun
• the part of the skull that encloses the brain
Example sentence • The cranium protects the brain from injuries.
8 4 noun
n
noun
• state of violent mental agitation
Example sentence • She was overwhelmed with delirium after winning the championship.
8 4 noun
n
noun
• a large retail store organized into departments offering a variety of merchandise; commonly part of a retail chain
Example sentence • I love shopping at the emporium . They have a wide variety of products.
9 4 noun, adjective
n, adj
noun
• athletic facility equipped for sports or physical training
Example sentence • I enjoy working out in the gymnasium every morning.
9 4 noun
n
noun
• a free-reeded instrument with a piano keyboard in which air is forced through the reeds by bellows
Example sentence • She played the harmonium in the church choir.
6 3 noun
n
noun
• a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
Example sentence • The balloon floated in the air due to the presence of helium .
7 4 noun
n
noun
• a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
Example sentence • The spark plugs in the engine contained a small amount of iridium .
7 3 noun
n
noun
• a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
Example sentence • The doctor prescribed lithium to treat her bipolar disorder.
9 4 noun
n
noun
• a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
Example sentence • Dietary sources of magnesium include nuts, seeds, and leafy green vegetables.
9 4 noun, adjective
n, adj
noun
• a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
Example sentence • The United States has stockpiled tons of plutonium .
6 3 noun
n
noun
• a platform raised above the surrounding level to give prominence to the person on it
Example sentence • The speaker stood behind the podium and began his speech.
9 4 noun
n
noun
• a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
Example sentence • Bananas are a good source of potassium .
7 3 noun, adjective
n, adj
adjective satellite
• having or reflecting superior quality or value; having a higher price or cost
Example sentence • I paid a premium for this high-quality leather jacket.
6 3 noun
n
noun
• a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
Example sentence • Table salt is a compound made up of sodium and chlorine.
8 4 noun
n
noun
• a room enclosed largely with glass and affording exposure to the sun
Example sentence • My house has a beautiful solarium where I can relax and enjoy the sunlight.
9 4 noun
n
noun
• a meeting or conference for the public discussion of some topic especially one in which the participants form an audience and make presentations
Example sentence • The symposium on climate change was attended by scientists from around the world.
7 4 noun, adjective
n, adj
noun
• a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
Example sentence • The nuclear power plant uses uranium as fuel.
7 2 noun
n
noun
• a period lasting five years
Example sentence • The ancient Romans celebrated the completion of a lustrum with a grand festival.
7 2 noun
n
noun
• a state of difficulty that needs to be resolved
Example sentence • I have a math problem that I can't solve.
4 1 adjective
adj
adjective
• (quantifier) used with either mass nouns or plural count nouns to indicate an unspecified number or quantity
adverb
• (of quantities) imprecise but fairly close to correct
adjective satellite
• relatively many but unspecified in number
Example sentence • I need some money for the bus fare.
4 1
preposition
• Used to indicate source or provenance.
Example sentence • He received a gift from his friend.
9 5 noun
n
noun
• a silvery ductile metallic element found primarily in bauxite
Example sentence • She wrapped the leftovers in aluminium foil to keep them fresh.
10 5 noun
n
noun
• the area of a theater or concert hall where the audience sits
Example sentence • The school held its annual concert in the auditorium .
11 5 noun
n
noun
• one of the dwelling units in a condominium
Example sentence • I just bought a new condominium in the heart of the city.
11 5 noun
n
noun
• a mortuary where corpses are cremated
Example sentence • The crematorium is a facility where the bodies of the deceased are cremated.
11 5 noun
n
noun
• a stable situation in which forces cancel one another
Example sentence • The company is trying to maintain an equilibrium between production and demand.
11 5 noun
n
noun
• a state of extreme confusion and disorder
Example sentence • The explosion caused pandemonium in the crowded market.
11 5 noun
n
noun
• a building housing an instrument for projecting the positions of the planets onto a domed ceiling
Example sentence • I visited the planetarium last night and learned about the solar system.
10 5 noun
n
noun
• a hospital for recuperation or for the treatment of chronic diseases
Example sentence • She spent several months in a sanatorium recovering from tuberculosis.
10 5 noun
n
noun
• a hospital for recuperation or for the treatment of chronic diseases
Example sentence • He was admitted to a sanitarium for treatment of his mental illness.
9 4 noun
n
noun
• comb-like respiratory structure serving as the gill of certain mollusks
Example sentence • The ctenidium is a respiratory organ found in bivalve mollusks.
8 4 noun
n
noun
• a trivalent metallic element of the rare earth group; usually occurs in association with yttrium
Example sentence • The discovery of lutetium is credited to the French scientist Georges Urbain in 1907.
11 4 noun
n
Example sentence • The Olympic Games occur once every quadrennium .
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