Sigmoid - Meaning, Definition & English Examples
Definition:
Shaped like the letter S or a curve with two bends.
Synonyms:
S-shaped, curved, serpentine, sinuous
Part of Speech:
adjective, noun
Antonyms:
straight, linear
Common Collocations:
sigmoid curve, sigmoid function, sigmoid colon
Derivatives:
sigmoidally, sigmoidoscopy
Usage Tips:
Use "sigmoid" to describe S-shaped curves in math, biology, or anatomy for precision.
Common Phrases:
sigmoid flexure, sigmoid notch, sigmoid growth curve
Etymology:
From Greek "sigma" (the letter S) + "-oid" (resembling), meaning "S-shaped."
Examples:
- 1. The graph shows a sigmoid curve rising steeply then leveling off.
- 2. The doctor examined her sigmoid colon during the procedure.
- 3. The river’s path was a perfect sigmoid shape from above.
- 4. This equation models a classic sigmoid function in machine learning.