How to say "elliptical" in Japanese

• 小判型こばんがた
  no-adjectiveCovers the shape sense: describing something as oval or oblong, shaped like the old gold coin. It is the less common of the two words for this sense.
• 小判こばんCommon
  no-adjectiveBest known as the name of the old oval gold coin, it also denotes that elongated oval shape; being the common word, it is usually the safer choice for 'elliptical'.

For the shape sense of 'elliptical'—an elongated oval—both words apply: 小判 is the common choice, while 小判型 makes 'shaped like the coin' explicit and is the less common of the two.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 小判型こばんがたoval
• 小判こばんoval