To surround; to encircle; to environ; to stretch round.
To go about or round entirely; to traverse.
A pair of compasses (a device used to draw an arc or circle).
A magnetic or electronic device used to determine the cardinal directions (usually magnetic or true north).
The range of notes of a musical instrument or voice.
Moderate bounds, limits of truth; moderation; due limits; used with within.
Relating to the sigmoid colon.
Exhibiting logistic growth; having a graph that accelerates until it reaches a carrying capacity.
Curved in two directions, like the letter "S", or the Greek ς (sigma); having a serpentine shape.