convulse

动词 convulse:

1. make someone convulse with laughter
2. be overcome with laughter
3. move or stir about violently
   同义词：thresh, thresh about, thrash, thrash about, slash, toss, jactitate
4. shake uncontrollably
5. cause to contract
6. contract involuntarily, as in a spasm

con.vulse

v.tr.（及物动词）
con.vulsed,con.vuls.ing,con.vuls.es
To shake or agitate violently:
使…强烈地震动或狂躁不安：
例句：
tremors that convulsed the countryside; when civil war convulsed the nation.See Synonyms at agitate
使乡间猛烈震动的地震；当内战震撼这个国家时参见 agitate

To affect with irregular and involuntary muscular contractions; throw into convulsions.
使抽搐：使受…影响而产生不规律的、不自觉的肌肉收缩；使发生痉挛
To cause to shake with laughter or strong emotion.
使…笑得前俯后仰或因强烈感情而颤抖

来源：
Latin convellere convuls- [to pull violently]
拉丁语 convellere convuls- [猛烈地拉]
com- [intensive pref.] * see com-
com- [前缀，表加强词意] *参见 com-
vellere [to pull]
vellere [拉，拽]