bi-, bin-, bino-, bis- (Latin: two, twice, double, twofold; a number used as a prefix).This bi- is used before s, c, or a vowel. Don't confuse this bi- with another one that means "life".
All words except biennial referring to periods of time and prefixed by bi- are potentially ambiguous. Since bi- can be taken to mean either "twice each" or "every two", a word like biweekly can be understood as "twice each week" or "every two weeks". To avoid confusion, it is better to use the prefix semi- to mean "twice each" (semiannual; semimonthly; semiweekly) or the phrase "twice a" or "twice each "(twice a month; twice a week; twice each year), and for the other sense to use the phrase every two (every two months; every two weeks; every two years).
Having two heads.
A muscle with two points of origin; especially, the large muscle at the front of the upper arm that flexes the elbow joint and the large muscle at the back of the thigh that flexes the knee joint.
Of or relating to the biceps; having two heads.
To divide (or fork) into two branches.
1. Lasting two months.
2. Occurring every two months; bimonthly.
3. A two-month period.
1. Made up of two parts or things; two fold; double.
2. Designating or of a number system in which the base used is two, each number being expressed in powers of two by using only two digits; specifically, "0" and "1".
3. Designating or of a musical form consisting of two main sections.
4. In chemistry, composed of two elements or radicals, or of one element and one radical [binary compounds].
In botany, occurring in pairs as with binate leaves.
1. Having two ears.
2. Of or involving the use of both ears.
3. Designating or of sound reproduction or transmission in which at least two sources of sound are used to give a stereophonic effect.