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FIR
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Tweet abbr. far-infrared radiation |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
fir  (fûr)
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Tweet n. 1. a. Any of various evergreen trees of the genus Abies, having linear flattened needles and erect cones with deciduous scales. b. Any of several similar or related trees, such as the Douglas fir. 2. The wood of any these trees. [Middle Englishfirre, probably of Scandinavian origin; see perkwu- in the Appendix of Indo-European roots.] firryadj.  (click for a larger image) firwhite fir Abies concolor |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
