Imposing stipulations or requirements that must be honoured.
Having the effect of counteracting diarrhea.
A finishing on a seam or hem of a garment.
The action or result of making two or more molecules stick together.
An item (usually rope, tape, or string) used to hold two or more things together.
The spine of a book where the pages are held together.
The association of a named item with an element of a program.
The interface of a library with a programming language other than one it is written in.
Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.
Unavoidable, inevitable.