9 3 noun, adjective n, adj noun
• a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
Example sentence • Water is composed of two hydrogens and one oxygen.
11 4 noun n noun
• any substance that produces cancer
Example sentence • Exposure to certain carcinogens , such as asbestos, can increase the risk of lung cancer.
8 3 noun n noun
• any flowerless plant such as a fern (pteridophyte) or moss (bryophyte) in which growth occurs only at the tip of the main stem
Example sentence • Some examples of acrogens include ferns and horsetails.
8 3 noun n
No meanings yet for this word...
Example sentence • The thermal breakdown of kerogens produces usable hydrocarbons.
10 3 noun n noun
• Any substance that governs the movement and development of cells during morphogenesis by forming a concentration gradient in the developing tissue.
Example sentence • Scientists are studying the role of morphogens in pattern formation.
10 3 noun n noun
• a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics
Example sentence • High levels of oestrogens in the body can be found during pregnancy.
9 4
No meanings yet for this word...
Example sentence • Scientists have discovered a new species of amidogens in the deep sea.
9 4 noun n noun
• a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
Example sentence • Potato peels contain cyanogens , which can be toxic if ingested in large amounts.
15 6 noun n
No meanings yet for this word...
Example sentence • The vaccine is designed to stimulate the immune system and prevent encephalitogens from causing brain inflammation.
11 4 noun n noun
• a protein present in blood plasma; converts to fibrin when blood clots
Example sentence • During injury, fibrinogens are converted to fibrin to form a blood clot.
7 2 noun n noun
• a plot of ground where plants are cultivated
adjective satellite
• the usual or familiar type
Example sentence • The botanical gardens had a wide variety of exotic plants.
13 5 noun n noun
• a psychoactive drug that induces hallucinations or altered sensory experiences
Example sentence • Many hallucinogens are illegal substances.
7 2 verb v Example sentence • She hardens her heart and refuses to forgive those who have wronged her.
10 4 noun n noun
• any substance or organism that provokes an immune response (produces immunity) when introduced into the body
Example sentence • The new vaccine contains several different immunogens .
15 5 noun n noun
• an expression of approval and commendation
Example sentence • They sent their congratulations on their wedding anniversary.
6 2 noun n noun
• a large number or amount
Example sentence • There were dozens of people waiting in line for the concert tickets.
7 2 noun n noun
• the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
Example sentence • The stars in the heavens twinkled in the dark night sky.
7 2 noun, adjective n, adj adjective
• of or relating to or characteristic of Homo sapiens
Example sentence • Homo sapiens is the scientific name for modern human beings.
9 2 noun n noun
• a land mass that projects well above its surroundings; higher than a hill
Example sentence • She enjoys hiking in the mountains during her summer vacations.
10 3 noun n noun
• the prevailing context that influences the performance or the outcome of a process
Example sentence • The hot weather conditions made it difficult to sleep at night.
6 2 noun n noun
• all of the living human inhabitants of the earth
Example sentence • Many humans enjoy solving complex puzzles.
12 3 noun n noun
• a manual usually accompanying a technical device and explaining how to install or operate it
Example sentence • Please read the instructions before starting the experiment.
9 3 noun n noun
• something you have to do
Example sentence • I bought a fancy dress for special occasions .
6 2 noun n noun
• edible viscera of a butchered animal
Example sentence • The doctor performed a surgery to transplant the patient's organs .
9 3 noun n noun
• mutual dealings or connections or communications among persons or groups
Example sentence • Our company's relations with our business partners are strong and collaborative.
6 2 noun n noun
• a New Testament book containing an exposition of the doctrines of Saint Paul; written in AD 58
8 2 noun n noun
• (Roman Catholic Church) a devotion consisting of fourteen prayers said before a series of fourteen pictures or carvings representing successive incidents during Jesus' passage from Pilate's house to his crucifixion at Calvary
Example sentence • I always listen to the news on the radio stations .
6 2 noun n noun
• the bulb of an onion plant
Example sentence • I chopped the onions for the soup.
8 2 noun n noun
• United States composer who promoted 20th century music (1896-1985)
Example sentence • He attends therapy sessions every Tuesday.
7 2 noun n noun
• a round fastener sewn to shirts and coats etc to fit through buttonholes
Example sentence • She sewed the buttons onto the shirt.
8 2 noun n noun
• hanging cloth used as a blind (especially for a window)
Example sentence • The curtains in the living room are a lovely shade of blue.
10 3 noun n noun
• a line leading to a place or point
Example sentence • Please follow the directions on the map to reach the destination.
5 2 noun n noun
• large gregarious predatory feline of Africa and India having a tawny coat with a shaggy mane in the male
Example sentence • There are many safari tours to observe lions in their natural habitat.
8 3 noun n noun
• any agent (physical or environmental) that can induce a genetic mutation or can increase the rate of mutation
Example sentence • Exposure to certain mutagens has been linked to an increased risk of cancer.
14 5 noun n noun
• the discipline that studies the principles of transmitting information and the methods by which it is delivered (as print or radio or television etc.)
Example sentence • Effective communications are essential for a successful business.
10 4 noun n noun
• financial transactions at a brokerage; having to do with the execution of trades and keeping customer records
Example sentence • The company's daily operations are managed by a team of professionals.
7 2 noun n noun
• a word used in exclamations of confusion
Example sentence • What the dickens are you doing?
6 2 noun n noun
• a card game in which you play your sevens and other cards in sequence in the same suit as the sevens; you win if you are the first to use all your cards
Example sentence • He rolled two sevens in a row.
9 3 noun n noun
• Any of various ornamental plants of the genus Impatiens.
8 3 verb v verb
• form a mental image of something that is not present or that is not the case
Example sentence • She imagines herself living in a different country.
8 3 noun n noun
• any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
Example sentence • The presence of antigens in the blood can indicate an infection.
8 3 noun n noun
• a person who inhabits a particular place
Example sentence • The park is teeming with denizens such as squirrels, birds, and rabbits.
8 3 noun n noun
• (medicine) a systematic plan for therapy (often including diet)
Example sentence • The spa offers various beauty regimens to rejuvenate the skin.
8 2 verb v Example sentence • The sauce thickens when you add cornstarch.
8 2 noun n noun
• an agreement between parties (usually arrived at after discussion) fixing obligations of each
verb
• negotiate the terms of an exchange
Example sentence • I found some great bargains at the flea market.
8 3 noun n noun
• a mechanical damper; absorbs energy of sudden impulses
Example sentence • The sofa was so comfortable, thanks to the soft cushions .
7 2 noun n noun
• a favorite saying of a group, organization or individual
Example sentence • During the protest, the demonstrators chanted various slogans .
7 2 noun n Example sentence • The commons are used for grazing livestock.
7 2 verb, noun v, n noun
• a request to be present
verb
• call in an official matter, such as to attend court
Example sentence • He received a summons to appear in court.
7 2 noun n noun
• a vague idea in which some confidence is placed
Example sentence • She had some strange notions about how the world worked.
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