This document defines a number of terms beginning with the prefix "bi-", meaning two, including: bicolor (having two colors), bicuspid (having two pointed teeth), bicycle (a vehicle with two wheels), biennial (occurring every two years), bifocals (eyeglasses with two lens sections for close and far vision), bilingual (able to speak two languages), bimonthly (occurring every two months), bipeds (two-footed creatures), biplane (an airplane with two pairs of wings), and biweekly (occurring every two weeks). Examples are provided for some definitions.

1. bi-bi-
two

2. bibicolorcolor
having
two
different
colors Bicolor Angelfish

3. bibicuspidcuspid
a two-
pointed
tooth
located in
the side of
the jaw

4. bibicyclecycle
a
vehicle
with two
wheels

5. bibiennialennial
happening
every
two yearsParsley is an example of
a biennial plant. It takes
two years to complete its
biological lifecycle.

6. bibifocalsfocals
eyeglasses
with lenses
that have two
different
sections – for
seeing close
up and far
away

7. bibilinguallingual
able to
speak two
different
languages

8. bibimonthlymonthly
happening
every
two
months The bill is due bimonthly.

9. bibipedped
a two-
footed
creature

10. bibiplaneplane
an
airplane
with two
pairs of
wings

11. bibiweeklyweekly
happening
every two
weeks
Ms. Lowans gets paid biweekly.