active agent
1
4.2
- noun
- Specialized
:
agente activo
- These strategies allowed the students to be active agents within the class environment, which provided them with opportunities to negotiate the difficulty of the instructional tasks (Siedentop & Tannehill, 2000).
One is that there are bio active agents in human breast milk that kill the HIV virus.
- One is that there are bio active agents in human breast milk that kill the HIV virus.
Examples
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One is that there are bio active agents in human breast milk that kill the HIV virus.
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Approximately 50% of the perforations that were treated with either active agent had closed.
Academic text (2003) -
We even spray active agents in many areas to suppress the mosquito population as a disease control measure.
Blog text (34) -
The results also support the theory that individuals are considered to be active agents of their behaviors, which means that students can manipulate and control their own behaviors.
Academic text (2006) -
The scientist discovered an active agent in the vaccine that helps boost immunity.
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We use an active agent in our cleaning products to effectively eliminate germs.
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Research has shown that the active agent in the medication helps reduce inflammation.
Antonyms
How Potent
Surface Forms
Morphology
The meaning 'a substance causing an effect' is directly and predictably composed from 'active' (capable of producing an effect) and 'agent' (the thing/substance that causes an effect), so a learner who knows both words will infer the MWE. This noun-noun combination is common across languages and scientific registers, making it clearly transparent despite being more technical in use.
Etymology
The compound active agent comes from the image of an agent, a person or thing that acts, and active, meaning 'doing the work'. So in medicine and chemistry it refers to the part of a mixture that 'does the work' or 'has an effect'.