a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
"The aircraft manufacturer selected titanium for the wing components because its strength-to-weight ratio and resistance to corrosion made it ideal for high-performance aviation."
A chemical element, atomic number 22; it is a strong, corrosion-resistant transition metal, used to make light alloys for aircraft etc.
"The engineer selected titanium for the airplane's wing structure because its strength and resistance to rust made it ideal for creating lightweight alloys."
In plain English: Titanium is a strong, lightweight metal that does not rust easily and is often used to make things like airplane parts or sports equipment.
"The replacement screws for my knee were made from titanium because they are very strong and lightweight."
Usage: Titanium refers specifically to the lightweight, rust-proof metal often chosen over steel or aluminum for aerospace and medical implants due to its exceptional strength-to-weight ratio. It should not be confused with generic terms like "strong metal" when precise material identification is required in technical contexts.
The name comes from the Latin word titanium. It was originally chosen to honor the Titans of Greek mythology.