| 单词 | perigon |
| 释义 | perigon in British English (ˈpɛrɪɡən) or perigone (ˈpɛrɪɡəʊn) noun an angle of 360° Also called: round angleWord origin C19: from peri- + Greek gonia angleperigon in American English (ˈperɪˌɡɑn) noun an angle of 360° Also called: round angle Word origin [1865–70; peri- + -gon]This word is first recorded in the period 1865–70. Other words that entered Englishat around the same time include: black belt, maverick, racism, steamroller, valenceperi- is a prefix meaning “about” or “around” (perimeter, periscope), “enclosing” or “surrounding” (pericardium), and “near” (perigee, perihelion), appearing in loanwords from Greek (peripeteia). On this model, peri- is used in the formation of compound words (perimorph) |
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