Definitions

1. adjective

relating to or characteristic of a rudiment; imperfectly developed or expressed

“His rudimental knowledge of the language was not enough to understand the complex novel.”

2. noun

a fundamental or elementary aspect of something

“The rudiments of a language are its basic grammar and vocabulary.”

3. noun

a part of the body that is not yet fully developed

“The baby’s rudiments of limbs were still very soft and fragile.”