"Invalidated" Natural Recordings by Native Speakers
Invalidated is a verb that means to make something or someone ineffective or unreliable by proving it to be false or incorrect. It can also mean to declare something, such as a document, certificate, or prize, to be null and void.
Invagination refers to the process of something, such as a part of an organ or a structure, being turned inward or folded inward, often to form a new cavity or chamber. It is often used in biological contexts to describe the development of an embryo or the formation of internal organs, such as the invagination of the gut or the invagination of the neural tube.