The word "reniform" is an adjective used to describe something that has a shape similar to a kidney. The term comes from the Latin word "ren," which means kidney, and "form," which means shape.
In a more scientific context, you might say: - "The reniform structure of the organ was crucial for its function in the body."
In general, "reniform" is mostly used to describe shape and does not have multiple meanings. However, it can be applied in different contexts, like botany or anatomy.
There are no common idioms or phrasal verbs that use "reniform," as it is a specialized term. However, you could create phrases like: - "The plant's reniform leaves stood out among the others."