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helo
Helot
helot
helotism
help
help desk
help out
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helper
helper T cell
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helmet

hel·met [ hélmət ] (plural hel·mets)


noun 
Definition:
 
1. hard protective head covering: a hat or other head covering made of a hard material and worn to protect the head from injury, often part of a uniform, suit of armor, or protective clothing

2. protective hat: any protective hat, e.g. against cold weather or the heat of the sun

3. biology part shaped like helmet: a part of an organism resembling a helmet, e.g. a flower's sepal or corolla

[15th century. < Old French, diminutive of helme "helmet" < Germanic]

hel·met·ed adjective
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