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.
4 1 noun
n
noun
• the habitation of wild animals
Example sentence • Many animals hibernate in dens during winter.
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.
3 1 noun
n
noun
• half the width of an em
4 1 noun
n
noun
• 100 fen equal 1 yuan in China
Example sentence • The fens are a type of wetland characterized by marshy, low-lying areas.
6 2 noun
n
noun
• a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
Example sentence • A 60-watt incandescent light bulb typically produces about 800 lumens of light output.
7 2 noun
n
noun
• the male reproductive organ of a flower
Example sentence • The flower had five stamens .
5 1 noun
n
noun
• any of several small active brown birds of the Northern Hemisphere with short upright tails; they feed on insects
Example sentence • We saw a family of wrens building a nest in our backyard.
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.
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.
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.
13 5 noun
n
noun
• any substance that acts as an antigen to cause agglutinin production
Example sentence • The presence of agglutinogens in blood determines a person's blood type.
8 3 noun
n
noun
• an additional name or an epithet appended to a name (as in `Ferdinand the Great')
12 4 noun
n
No meanings yet for this word...
Example sentence • The immune system recognizes alloantigens as foreign and launches an immune response.
5 2 noun
n
noun
• a primeval Egyptian personification of air and breath; worshipped especially at Thebes
Example sentence • The congregation responded with loud amens at the end of the prayer.
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, adjective
n, adj
No meanings yet for this word...
Example sentence • Researchers are studying amylogens to better understand their role in starch synthesis.
15 6 noun
n
No meanings yet for this word...
Example sentence • Consuming fruits and vegetables rich in anticarcinogens may reduce the risk of certain cancers.
13 5 noun
n
No meanings yet for this word...
Example sentence • The patient was prescribed antiestrogens to reduce the hormone levels.
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.
6 2
No meanings yet for this word...
8 3 noun
n
noun
• A machine that automatically writes a person's signature.
Example sentence • The office used autopens to sign hundreds of documents quickly.
7 3 verb
v
verb
• cause to become awake or conscious
Example sentence • The sound of the alarm clock awakens me every morning.
9 3 verb, noun
v, n
No meanings yet for this word...
9 3 verb
v
No meanings yet for this word...
Example sentence • The room bedarkens as the sun sets.
4 1 noun
n
noun
• a mountain or tall hill
8 3 verb
v
verb
• be a signal for or a symptom of
Example sentence • The sudden drop in temperature betokens the onset of winter.
7 3 noun
n
No meanings yet for this word...
Example sentence • Scientists study biogens to understand the origin of life.
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