| 词汇 | analgesia |
| 词根词缀 | 词源： "absence of pain," 1706, medical L., from Gk. analgesia "painlessness, insensibility," from analgetos "without pain, insensible to pain" (also "unfeeling, ruthless"), from an- "not" + algein "to feel pain" (see analgesic). |
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