4 1 noun
n
noun
• a transparent optical device used to converge or diverge transmitted light and to form images
Example sentence • She wiped the lens of her camera before taking a picture.
5 1
noun
• A valley, especially the deep valley of a stream or rivulet
Example sentence • The green denes on the hillside provided a perfect picnic spot.
7 2 noun
n
noun
• Any of a class of unsaturated ketones, having a general formula R1R2C=C=O, that react as if they were inner acid anhydrides
Example sentence • The reaction of ketenes with alkenes yields cycloadducts.
10 3 noun
n
noun
• a tomato-flavored consomme; often served chilled
10 3
No meanings yet for this word...
5 1 noun
n
No meanings yet for this word...
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.
4 1 noun
n
noun
• the habitation of wild animals
Example sentence • Many animals hibernate in dens during winter.
10 4 noun
n
noun
• a colorless flammable gas used chiefly in welding and in organic synthesis
Example sentence • Some acetylenes are used as fuels for metal cutting.
7 2 noun
n
noun
• small dry indehiscent fruit with the seed distinct from the fruit wall
Example sentence • The dandelion produces achenes that are dispersed by the wind.
6 2 verb
v
noun
• a yellow pungent volatile oil (trade name Agene) formerly used for bleaching and aging flour
6 2 noun
n
No meanings yet for this word...
Example sentence • Strawberries are an example of a plant that produces akenes .
7 2 noun, adjective
n, adj
noun
• any unsaturated aliphatic hydrocarbon
Example sentence • The unsaturated nature of alkenes makes them highly reactive.
8 3 noun
n
No meanings yet for this word...
Example sentence • The chemical formula for amylenes is C5H10.
11 3 noun
n
No meanings yet for this word...
9 3 noun, adjective
n, adj
No meanings yet for this word...
Example sentence • The antigenes proteins are responsible for triggering an immune response.
6 2 noun
n
No meanings yet for this word...
Example sentence • Benzene is the simplest of the arenes .
15 4 noun
n
No meanings yet for this word...
Example sentence • Some benzanthracenes are known to be carcinogenic.
8 2 noun
n
noun
• a colorless liquid hydrocarbon; highly flammable; carcinogenic; the simplest of the aromatic compounds
Example sentence • Many household cleaning products contain benzenes .
13 4 noun
n
No meanings yet for this word...
Example sentence • Exposure to benzoapyrenes in the workplace can have serious health consequences.
7 2 noun
n
noun
• any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
Example sentence • The market for butenes is expected to grow in the coming years.
9 3 noun
n
noun
• any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
Example sentence • The main components of butylenes are 1-butene, cis-2-butene, and trans-2-butene.
9 2 noun
n
No meanings yet for this word...
9 3 noun
n
noun
• an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver
Example sentence • The consumption of carotenes is associated with a reduced risk of certain types of cancer.
8 2
No meanings yet for this word...
14 4 noun
n
noun
• a colorless volatile flammable liquid with an almond odor that is made from chlorine and benzene; used as a solvent and in the production of phenol and DDT and other organic compounds
Example sentence • The production of chlorobenzenes has been declining due to environmental concerns.
12 3 noun
n
noun
• derivative of butadiene used in making neoprene by polymerization
Example sentence • There are several different types of chloroprenes .
11 3 noun
n
noun
• a fertility drug (trade name Clomid) that is used to stimulate ovulation and that has been associated with multiple births
Example sentence • The doctor prescribed clomiphenes to regulate the patient's menstrual cycle.
11 3 verb
v
verb
• go against, as of rules and laws
Example sentence • The company's advertising campaign contravenes consumer protection laws.
8 2 verb
v
Example sentence • The board convenes every Monday to discuss new business.
7 2 noun
n
noun
• any of three isotopes of a colorless aromatic liquid hydrocarbon occurring in the volatile oil of cumin and thyme and used in the manufacture of synthetic resins
Example sentence • The cymenes present in thyme oil give it its distinct fragrance.
9 3 noun
n
No meanings yet for this word...
10 3 noun
n
adjective
• of or relating to or characteristic of Damascus or its people
noun
• a design produced by inlaying gold or silver into steel
adjective satellite
• (of metals) decorated or inlaid with a wavy pattern of different (especially precious) metals
verb
• inlay metal with gold and silver
15 5 noun
n
No meanings yet for this word...
Example sentence • The synthesis of dinitrobenzenes involves the nitration of benzene using a mixture of nitric acid and sulfuric acid.
11 3 noun
n
No meanings yet for this word...
10 3 noun
n
noun
• the fourth stage of the prophase of meiosis
Example sentence • During diplotenes , the chromosomes become more condensed and visible under the microscope.
10 4 noun
n
No meanings yet for this word...
Example sentence • Scientists are studying the different types of eleoptenes found in crude oil.
8 3 noun
n
noun
• An epicene word; preceded by the: the epicene words of a language as a class.
Example sentence • The concept of epicenes challenges traditional gender norms.
7 2 noun
n
noun
• a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
Example sentence • Polyethylene is made from ethenes .
13 4 noun
n
No meanings yet for this word...
Example sentence • The lab technician analyzed the concentration of ethylbenzenes in the sample.
9 3 noun
n
noun
• a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
Example sentence • The ethylenes in this chemical mixture can be dangerous if mishandled.
10 3 noun
n
noun
• Any of a class of metallocenes containing an iron atom between two cyclopentadienyl rings; especially the simplest of the class bis-cyclopentadienyl iron.
Example sentence • The use of ferrocenes in drug discovery has gained significant attention.
10 3 noun
n
noun
• a form of carbon having a large molecule consisting of an empty cage of sixty or more carbon atoms
Example sentence • Scientists have discovered various types of fullerenes , such as C60 and C70.
9 2 noun
n
noun
• necrotic tissue; a mortified or gangrenous part or mass
9 3 noun
n
No meanings yet for this word...
Example sentence • The gasogenes was invented in the early 19th century as a device for producing illuminating gas.
9 3 noun
n
noun
• a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
9 3 noun
n
No meanings yet for this word...
5 1 noun
n
noun
• (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity
Example sentence • Our genes determine our unique physical characteristics.
7 2
No meanings yet for this word...
8 2 noun
n
No meanings yet for this word...
Example sentence • Chemicals such as drugs and dyes are often haptenes .
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