phosphorus

phosphorus — noun

1. a chemical element present in bones, teeth, soil, and fertilizer; some forms giv

1.名詞C2
釋義

a chemical element present in bones, teeth, soil, and fertilizer; some forms give off a faint light and catch fire fast in air.

例句

The science teacher showed the class red phosphorus on a glass tray.

pattern: red phosphorus

Farmers add phosphorus to the soil when corn leaves turn pale.

pattern: add phosphorus to the soil

同義詞
  • P

    the chemical symbol, used in formulas, labels, and science writing

  • element P

    a technical way to identify the element by its symbol

  • white phosphorus

    one highly reactive form, so it is narrower than the general word

  • red phosphorus

    one common solid form, also narrower than the general word

文法句型

phosphorus in soil

need phosphorus for bones and teeth

add phosphorus to the soil

white phosphorus

red phosphorus

用法筆記

Usually uncountable and most common in science, farming, and health contexts. When speakers mean a particular form, they often say 'white phosphorus' or 'red phosphorus' rather than the word alone.

常見錯誤

❌The plant needs more phosphoruses.
✅The plant needs more phosphorus.
💡the element name is usually uncountable.
❌This cleaner contains phosphorous.
✅This cleaner contains phosphorus.
💡'phosphorous' is usually an adjective, while 'phosphorus' is the noun for the element.