excitation
/ˌek.saɪˈteɪ.ʃən/ (bre, ipa) · /ˌek.saɪˈteɪ.ʃən/ (ame, ipa) · /ˌek-ˌsī-ˈtā-shən ˌek-sə-/ (ame, mw)
excitation — noun
1. the act of causing a cell, organ, circuit, or similar system to become more acti
the act of causing a cell, organ, circuit, or similar system to become more active
The drug caused sudden excitation in the frog's leg muscles.
cause excitation in body tissue
Blue light produces excitation in the cells behind the eye.
excitation in cells after outside stimulation
The scan showed lower excitation in one part of the brain.
Engineers controlled the circuit's excitation before starting the test.
Too much excitation can make the sensor give a false signal.
- activation
a broader technical word for making something start working
- stimulation
often names the trigger rather than the resulting active state
- arousal
used in physiology for raised activity, but it is less common in general science writing
- inhibition
used when activity is reduced or held back
文法句型
excitation in something
cause excitation
reduce excitation
用法筆記
Common in scientific writing, especially with cells, nerves, muscles, and electrical systems. In everyday English, writers often prefer a simpler word such as activation or a more specific verb such as stimulate.
2. the body's movement into a sexually aroused state
the body's movement into a sexually aroused state
The doctor said stress can delay sexual excitation in some patients.
sexual excitation in medical explanation
During the lesson, the nurse explained how sexual excitation affects breathing.
formal teaching context for the term
For some patients, sexual excitation returns slowly after surgery.
The guidebook describes sexual excitation as a normal body response.
After the injury, Paul worried about changes in sexual excitation.
- arousal
the more common general term; excitation sounds more clinical
文法句型
sexual excitation
excitation in someone
reduce excitation
用法筆記
Used mainly in medical, educational, and psychology contexts. In everyday conversation, people usually choose a more direct phrase such as sexual arousal instead.