English-Thai Dictionary
annulus
N วง แหวน wong-waen
Webster's 1913 Dictionary
ANNULUS
An "nu *lus, n.; pl. Annuli. Etym: [L.]
1. A ring; a ringlike part or space.
2. (Geom.) (a ) A space contained between the circumferences of two circles, one within the other. (b ) The solid formed by a circle revolving around a line which is the plane of the circle but does not cut it.
3. (Zoöl.)
Defn: Ring-shaped structures or markings, found in, or upon, various animals.
New American Oxford Dictionary
annulus
an nu lus |ˈanyələs ˈænjələs | ▶noun ( pl. annuli |-ˌlī | ) technical a ring-shaped object, structure, or region. ORIGIN mid 16th cent.: from Latin anulus, annulus .
Oxford Dictionary
annulus
annulus |ˈanjʊləs | ▶noun ( pl. annuli |-lʌɪ, -liː | ) technical a ring-shaped object, structure, or region. • Mathematics a plane figure consisting of the area between a pair of concentric circles. ORIGIN mid 16th cent.: from Latin anulus, annulus .
The Wordsmith Dictionary