Translation guide
Describes something that is oval or egg-shaped, like a stretched circle. In Japanese, the most common word is 楕円形 (daenkei), but other terms exist for specific contexts like geometry, astronomy, or everyday objects.
Describing something that is oval or egg-shaped in everyday contexts.
The standard word for 'elliptical shape' or 'oval shape'. Used in both technical and everyday language.
This table is oval-shaped.
She has an oval face.
Literally 'egg-shaped'. More casual and descriptive than 楕円形, often used for objects that resemble an egg.
The stone was egg-shaped.
Refers to the shape of a traditional gold coin (koban), which is a rounded rectangle or oval. Used for specific items like certain mirrors or badges.
The mirror is oval-shaped (like a koban).
Referring to the precise mathematical shape of an ellipse.
Describing elliptical galaxies or orbits.
Referring to an elliptical running track or shape in sports.
An oval track, like a running track. Often just called トラック, but 楕円形の clarifies the shape.
The athletes ran on the oval track.
楕円形 (daenkei) is the general term for an elliptical or oval shape, used in both technical and everyday contexts. 卵形 (tamagogata) specifically means 'egg-shaped' and is more casual. Use 楕円形 for precise descriptions and 卵形 when emphasizing the resemblance to an egg.
In casual conversation, you can simply say 楕円 (daen) instead of 楕円形 (daenkei) when the context is clear. For example, 'このテーブルは楕円だよ' (This table is oval). However, 楕円形 is safer for learners.
This shape is called an ellipse.
The satellite is in an elliptical orbit.