Words beginning with "bi-"

1. (noun) refers to animals that walk on two legs.
2. (noun) a type of mollusc (eg. oysters) that has its body inside two connected shells.
4. (adj) used to refer to lenses divided into two distinct parts.
6. (noun) sports competition that combines skiing and rifle shooting.
8. (adj) having two biological parents of different races.
10. (noun) the act of marrying someone while already being legally married to a person.
11. (noun) an old type of aircraft with two sets of wings, one above the other.
12. (adj) relating/consisting two things in which everything is either one thing or the other.
14. (verb) to divide into two equal parts.
15. (adj) involving two groups or countries.
16. (adj) happening twice a year.
17. (adj) having two parts (of a parliament, congress, etc.).

1. (adj) having two axes (real or imaginary straight lines going through the centre of a object that is spinning, or lines that divide a shape into two equal halves)
3. (noun) two words separated by a conjunction that almost always appear in the same order.
5. (adj) supported by or consisting of two political parties.
7. (adj) having two cells.
9. (noun) the day or year that is 200 years after a particular event, especially an important one.
10. (adj) involving two people or organizations, or existing in two parts.
13. (verb) to divide into two parts.
15. (noun) _____ disorder. Mental condition when a person can at times be very depressed and at other times be very energetic.