The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
D 1
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Tweet 1. The symbol for the isotope deuterium. 2. also d The symbol for the Roman numeral 500. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
D 2
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Tweet abbr. 1. dative 2. day 3. Sports a. defender b. defense c. defensive 4. Democrat 5. divorced 6. down |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
d 2
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Tweet abbr. 1. deuteron 2. diameter 3. differential 4. down quark |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
'd
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Tweet 1. Contraction of had: He'd already left. 2. Contraction of would: I'd rather walk than drive. 3. Contraction of did: Who'd you ask? |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
D-
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Tweet In biochemistry, a symbol used as a prefix to indicate the spatial configuration of certain organic compounds with asymmetric carbon atoms. It is used if an organic compound has a configuration about an asymmetric carbon atom analogous to that of D-glyceraldehyde (the arbitrarily chosen standard), in which the hydroxy (OH) functional group is on the right side of the asymmetric carbon atom in a Fischer projection formula. [From DEXTROROTATORY.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
d-
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Tweet The symbol for dextrorotatory. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
d.
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Tweet abbr. 1. Zoology dam 2. date 3. daughter 4. died 5. dose 6. Chiefly British penny ( 1/12 of a shilling) |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.