Hint
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Answer
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One set of coordinates on a plane
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X-axis
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In Pair 23 of a gene, these determine gender
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X-chromosome
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This nomadic tribe menaced south Mongolia
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Xiongnu
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Small, three-masted Mediterranean boat
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Xebec
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A Greek philosopher, theologian, poet and critic
|
Xenophanes
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Fragments of older rock embedded in igneous layers
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Xenolith
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A prescription drug to cure anxiety, insomnia, and panic
|
Xanax
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Element 54, a heavy, colorless gas
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Xenon
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A natural alcohol found in plants used as sugar substitute in gum and others
|
Xylitol
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A fear of strangers, or even anything foreign
|
Xenophobia
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Central Chinese city, once its capital
|
Xi'an
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An abnormal dryness of a body part
|
Xerosis
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One capital of Kublai Khan's Yuan Dynasty
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Xanadu
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A popular copying-machine company
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Xerox
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A Bantu tribe living mainly east of the Cape Province
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Xosa
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Ancient Persian king who failed to conquer Greece
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Xerxes
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A process using invisible waves whereby bones can be seen
|
X-ray
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A popular holiday phrase that replaces 'Christ' with the Greek letter
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X-mas
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A polysaccharide secreted by a bacterium, used as food additive ('gum')
|
Xanthan
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One of the two processing tubes in plants
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Xylem
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Very popular gaming system
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X-box
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An insect, mollusk or crustacean that eats wood
|
Xylophage
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Percussion instrument with a small mallet and plates
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Xylophone
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