Questions about example sentences with, and the definition and usage of "Diameter"

The meaning of "Diameter" in various phrases and sentences

Q: What does diameter mean?
A: Distance through the middle of a circle. (Twice the distance of the radius)
Q: What does diameter mean?
A: A straight line through the center going from one side to the other.
Q: What does less than 6mm nor more than 25mm deep and not more than 25mm in diameter mean?
A: it means something is not smaller than 6mm but not deeper than 25mm or as wide as 25mm. Basically saying, 'this is a big hole and I know it's bigger than 6mm but smaller than 25mm, it's somewhere in between that range'

Synonyms of "Diameter" and their differences

Q: What is the difference between the diameter of balls and the diameters of balls ?
A: diameter of balls is gramatically correct.

Translations of "Diameter"

Q: How do you say this in English (US)? How to describe the large diameter of rim,can we say big mouth or big rim?
A: Wide mouth
Q: How do you say this in English (US)? can you say small or narrow when something’s small in its diameter? which adjective do you use?
A:
-Narrow 一番よく使う
-Small 時々使う
-Tight 時々使う

Q: Half of the diameter is called radius Does this sound natural?
A: × Half of the diameter is called radius
✓ Half of the diameter is called the radius

It is more usual to say the word that you are defining first, then say its definition. For example, "The radius is one half of the diameter." Or "The radius is one half the length of the diameter."
Q: The diameter of the sun is more than a hundred times longer than that of Earth. Does this sound natural?
A: Thanks for the help, adamruf. Are you American?
Q: Please show me how to pronounce diameter .
A: Check the question to view the answer