Th
Học thuậtThân thiện
Definition
- Noun:
- Thorium: A soft, silvery-white, tetravalent, radioactive metallic element. Its isotope 232 is used as a power source in nuclear reactors, and it occurs in minerals such as thorite and monazite sands.
- Thursday: The fifth day of the week, following Wednesday and preceding Friday; often considered the fourth working day in many cultures.
Usage Examples
- Noun (Thorium):
- The scientist studied the properties of th for potential use in advanced nuclear energy systems.
- Monazite sand is a primary source for extracting th.
- Noun (Thursday):
- Our weekly team meeting is scheduled for Th.
- She will arrive next Th.
Advanced Usage
- Chemical Symbol: In scientific contexts, "Th" is the standard chemical symbol for the element thorium on the periodic table.
- The periodic table lists Th with atomic number 90.
- Abbreviation: "Th" or "Thu." is a common written abbreviation for Thursday in calendars and schedules.
- The appointment is marked for Th, 14th May.
Variants and Related Words
- Thorium-232 (n): The most common and stable isotope of thorium, used as nuclear fuel.
- Thursday (n): The full, unabbreviated form of the day of the week.
Synonyms
- For "Thorium": Element 90 (contextual synonym based on atomic number).
- For "Thursday": None (it is a proper noun for a specific day).
Notes on Different Meanings
The meaning of "th" is entirely context-dependent. In a scientific, chemical, or engineering text, it almost certainly refers to the element thorium. In everyday writing, such as on a calendar, diary, or informal note, it is an abbreviation for Thursday. It is not typically used as a standalone word in spoken language for either meaning; one would say "thorium" or "Thursday" in full.
Noun
- a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
- the fifth day of the week; the fourth working day