C4

Definitions

1. Designating a type of photosynthesis or carbon fixation, or a plant using such a process.
   uncountable
2. A 501(c)(4), an organization that conforms to the United States Internal Revenue Code section 501(c)4
   US
3. Abbreviation of Channel 4 (“the British television channel”).
   British, abbreviation, alt-of

Equivalents

Examples

“The enzyme responsible for C₄ fixation is PEP carboxylase.”

“Since C₄ plants have⟳ become⟳ more prevalent, and because they are poorer sources of nutrition, herbivores have⟳ had to adapt their feeding behaviour to the changing flora.”

CEFR level