Definitions for excitatory
ex·ci·ta·to·ry

Princeton's WordNetRate this definition:0.0 / 0 votes

1. excitant, excitative, excitatoryadjective

   (of drugs e.g.) able to excite or stimulate

WiktionaryRate this definition:0.0 / 0 votes

1. excitatoryadjective

   stimulating, exciting or causing excitation; excitative

WikipediaRate this definition:0.0 / 0 votes

1. excitatory

   In neuroscience, an excitatory postsynaptic potential (EPSP) is a postsynaptic potential that makes the postsynaptic neuron more likely to fire an action potential. This temporary depolarization of postsynaptic membrane potential, caused by the flow of positively charged ions into the postsynaptic cell, is a result of opening ligand-gated ion channels. These are the opposite of inhibitory postsynaptic potentials (IPSPs), which usually result from the flow of negative ions into the cell or positive ions out of the cell. EPSPs can also result from a decrease in outgoing positive charges, while IPSPs are sometimes caused by an increase in positive charge outflow. The flow of ions that causes an EPSP is an excitatory postsynaptic current (EPSC). EPSPs, like IPSPs, are graded (i.e. they have an additive effect). When multiple EPSPs occur on a single patch of postsynaptic membrane, their combined effect is the sum of the individual EPSPs. Larger EPSPs result in greater membrane depolarization and thus increase the likelihood that the postsynaptic cell reaches the threshold for firing an action potential. EPSPs in living cells are caused chemically. When an active presynaptic cell releases neurotransmitters into the synapse, some of them bind to receptors on the postsynaptic cell. Many of these receptors contain an ion channel capable of passing positively charged ions either into or out of the cell (such receptors are called ionotropic receptors). At excitatory synapses, the ion channel typically allows sodium into the cell, generating an excitatory postsynaptic current. This depolarizing current causes an increase in membrane potential, the EPSP.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Excitatoryadjective

   tending to excite; containing excitement; excitative

2. Etymology: [Cf. F. excitatoire.]

How to pronounce excitatory?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say excitatory in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of excitatory in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of excitatory in Pythagorean Numerology is: 5

Examples of excitatory in a Sentence

1. Cynthia Otto:

   Dogs may go through an excitatory phase, they might actually start panting and they may pace around, it sort of depends on the dog’s personality, too.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=excitatory
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Excitatory
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Excitatory
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/excitatory