sporadic

• adj.散発的；散在する；不規則に発生する

spore, 胞子, -adic, 形容詞接尾辞から。すなわち、sporadic, 派生義 intermittent, intermittent など。

sporadic

sporadic: [17] Sporadic means etymologically ‘scattered like seed’. It comes via medieval Latin sporadicus from Greek sporadikós, a derivative of the adjective sporás ‘scattered’. This was formed from the same base as produced sporá ‘act of sowing, seed’, ancestor of English diaspora [19] (etymologically ‘dispersal’) and spore [19]. And both were related to speírein ‘sow’, source of English sperm.
=> diaspora, sperm, spore

sporadic (adj.)

1680s, from Medieval Latin sporadicus "scattered," from Greek sporadikos "scattered," from sporas (genitive sporados) "scattered, dispersed," from spora "a sowing" (see spore). Originally a medical term, "occurring in scattered instances;" the meaning "happening at intervals" is first recorded 1847. Related: Sporadical (1650s); sporadically.

1. There were reports of sporadic fighting in the streets.

街中で散発的な戦闘があったと報道されている。

2.The area has been the scene of sporadic artillery duels over the last six weeks.

過去6週間、この地域では散発的な砲撃が発生していた。dd>

3.In its common ' sporadic "form,Creutzfeldt--Jakob disease is rare in people under 50.

カヤ病は通常、「例」として50歳以下の人に偶発的に発症する。

ライフサイエンス-口蹄疫BSE

4.The sound of sporadic shooting could still be heard.

散発的な銃声が聞こえます。

5.Her attendance at school was sporadic .

彼女はよく授業をサボっている。