noun
Geometric term for a solid with a polygonal base and a point, or a cone. Used in mathematics and technical contexts.
円錐は底面が円の錐体です。
A circular cone is a cone whose base is a circle.
三角錐は底面が三角形の錐体です。
A triangular pyramid is a pyramid whose base is a triangle.
noun
retinal cone; cone cell
Medical/anatomical term for cone cells in the retina. Often used in ophthalmology and vision science.
錐体は明るい場所での色覚に関与する。
Cone cells are involved in color vision in bright light.
桿体 are rod cells, the other type of photoreceptor in the retina, often contrasted with 錐体 (cone cells).
Compound of 錐 (すい, 'awl' or 'drill', also used for cone shapes) and 体 (たい, 'body'). The term is used in geometry and anatomy for cone-shaped structures.