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: immunity that develops after exposure to a suitable agent (as by an attack of a disease or by injection of antigens) — compare active immunity, innate immunity, passive immunity
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acquired brain injury
acquired immune deficiency syndrome
acquired immunodeficiency syndrome
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to enclose within walls
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Late Autumn 2018 Words of the Day Quiz
Can you spell these 10 commonly misspelled words?
Test Your Knowledge - and learn some interesting things along the way.
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Redundant but also not redundant
Wordies read on for enlightenment.
We hold back nothing in this article.
Words from the week of 12/7/2018
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
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The awkward case of 'his or her'
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The dictionary has been scrambled—can you put it back together?