Meaning & Definition of word "Receptor"
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Receptor
/rɪˈsɛptər/
noun:
- 1. A cell or organelle that responds to external stimuli or signals, often involved in sensory perception or biological processes.
- Example: The photoreceptor cells in the retina are responsible for converting light into neural signals.
- 2. A protein molecule that binds to specific ligands, such as hormones, neurotransmitters, or drugs, and is involved in signal transduction.
- Example: The hormone insulin binds to its receptor on the cell surface, triggering a series of metabolic responses.
- 3. An element in a communication system that receives signals, such as a radio or television receiver.
- Example: The radio receptor must be tuned to the correct frequency to pick up the broadcast signal.
Etymology
From Latin 'receptus', meaning 'taken back'.
Common Phrases and Expressions
pain receptor:
A type of receptor that responds to painful stimuli.
hormone receptor:
A receptor that specifically binds to a hormone and triggers a response.
neurotransmitter receptor:
A receptor located on a neuron's membrane that interacts with neurotransmitters.
Related Words
transmitter:
A substance or device that sends signals.
ligand:
A molecule that binds to a receptor to form a complex.
signal:
A detectable change that conveys information.
Slang Meanings of receptor
Meaning: A person who receives information passively.
Example Sentence: He’s just a receptor in the meeting, not contributing much.
Meaning: Someone who is overly receptive to emotions or vibes.
Example Sentence: She's such a receptor; she can feel the mood in the room instantly.