You are welcome.
You probably don’t know that there is a different terminology related to different areas of science
In addition, the Russian language is very rich (has a wide variety of words) and the same subject can be called in several terms, depending on where it is used.
I’ll explain again, because I see that you did not understand. If my book were addressed to dentists or biologists who specialize in the study of walruses, then I would use other terms to describe the structure of the walrus fang. But since the book is addressed to museum staff and collectors, I used the official terminology, which is accepted among them. I hope you now understand and we can finish this discussion
I'm glad I can teach you something new. With best wishes.
P.S. By the way, I think you should start advising someone to correct something in books related to arms and armor, as well as artistic and decorative items, after you write your "ideal book"