spectral
adj.
1718, "capable of seeing spectres;" 1815, "ghostly;" from spectre + -al(1). Meaning "pertaining to a spectrum" is 1832, from stem of spectrum + -al(1). Related: Spectrally.
| 词汇 | spectral |
| 词根词缀 | Online Etymology Dictionary spectral adj. 1718, "capable of seeing spectres;" 1815, "ghostly;" from spectre + -al(1). Meaning "pertaining to a spectrum" is 1832, from stem of spectrum + -al(1). Related: Spectrally. |
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