noun

photosynthesis

/ˌfoʊtoʊˈsɪnθəsɪs/ · say it: FOH·toh·SIN·thuh·sis

the process by which plants make food from sunlight

In more detail

1. (noun) the process by which green plants use sunlight, water, and carbon dioxide from the air to make food (glucose) and release oxygen

2. (noun) any similar process in other organisms that converts light energy into chemical energy

Examples

1. Photosynthesis is why plants need sunlight to grow and stay healthy.
2. Some bacteria can perform a type of photosynthesis without chlorophyll.

How to use photosynthesis

Photosynthesis is a technical, scientific term used primarily in biology and environmental contexts to describe the fundamental process by which plants convert light energy into chemical energy stored as glucose. It is the formal, precise term for this mechanism and appears frequently in academic, educational, and scientific discussions rather than everyday conversation.

Common phrases

undergo photosynthesis
the process of photosynthesis
photosynthesis occurs
enhanced photosynthesis
photosynthesis rate

Synonyms

light reaction · carbon fixation · autotrophic process

Word family

photosynthesize (verb) · photosynthetic (adjective) · photosynthetically (adverb)

A common mistake

Learners sometimes confuse photosynthesis with respiration, which is its opposite process; photosynthesis produces glucose and oxygen from light and carbon dioxide, while respiration consumes glucose and oxygen to release energy.

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