English dictionary, thesaurus, translations & etymology
FreeDict.com
noun Uncommon

phosphorus

FOS-fuh-ruhs

Phosphorus (noun) means a chemical element (symbol P, atomic number 15) that exists in several forms, some of which glow or ignite easily. Example: “Phosphorus is a key ingredient in matches and fertilizers.”

Study it as flashcards or scroll it in Vocabulary Flow — saved to your collection.
noun
1
A chemical element (symbol P, atomic number 15) that exists in several forms, some of which glow or ignite easily.
"Phosphorus is a key ingredient in matches and fertilizers."

How to use phosphorus

Learner’s notes

In plain EnglishA chemical element known for glowing or burning easily, essential to living cells and used in fertilizers and matches.

Easily confused with
Vocabulary Flow
Build your vocabulary from words like phosphorus.
Vocabulary Flow serves the next word, and the next — meaning, pronunciation and an example each time. Practice at your level, or learn English in your own language.
Start vocabulary practice

Word forms

phosphoruses plural, phosphori plural

Test yourself on “phosphorus” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

_____ is a key ingredient in matches and fertilizers.

Etymology

Borrowed from Latin phosphorus, from Greek phosphoros, "bearer of light" — originally a name for the morning star, the planet Venus seen before sunrise.

Origin: Latin

Lucifer P daystar morning star atomic number 15

Related words

Rhymes for phosphorus

See all rhymes for phosphorus →

Frequently asked questions

What does “phosphorus” mean?

The word “phosphorus” means a chemical element (symbol P, atomic number 15) that exists in several forms, some of which glow or ignite easily. In plain terms, a chemical element known for glowing or burning easily, essential to living cells and used in fertilizers and matches.

How do you pronounce “phosphorus”?

“Phosphorus” is pronounced FOS-fuh-ruhs (/ˈfɑs.fɚ.əs/ in IPA).

How do you use “phosphorus” in a sentence?

Here is “phosphorus” used in a sentence: “Phosphorus is a key ingredient in matches and fertilizers.”

What part of speech is “phosphorus”?

“Phosphorus” is a noun.

Where does the word “phosphorus” come from?

The word “phosphorus” comes from Latin. Borrowed from Latin phosphorus, from Greek phosphoros, "bearer of light" — originally a name for the morning star, the planet Venus seen before sunrise.

Is “phosphorus” a common word?

“Phosphorus” is an uncommon word in modern English.

People also searched

Definitions: FreeDict original editorial