和英／英和辞典 - Japanese⇔English Dictionary

1. 1. [n] {math} principal ideal

Kanji in this word

• 単
  simple, one, single, merely

  On: タン (tan)

  Kun: ひとえ (hitoe)

  9 strokes · Grade 4 · JLPT N2
• 項
  paragraph, nape of neck, clause, item, term (expression)

  On: コウ (kou)

  Kun: うなじ (unaji)

  12 strokes · Grade 8 · JLPT N1