Lesson 16 Vocabulary (week 13)

something that is done to prevent possible harm or trouble from happening in the future

• precaution

• postpone

• symmetry

• forecast

an instrument that is used to measure air pressure and predict changes in the weather

• diameter

• forecast

• barometer

• perimeter

occurring in the southern United States before the Civil War

• perimeter

• antebellum

• antecedent

• optometry

the outside edge of an area or surface; the total length of the lines that form a shape

• diameter

• optometry

• perimeter

• symmetry

a statement about about what will happen in the future

• forecast

• barometer

• antebellum

• postpone

the distance through the center of a circle or sphere from one side to the other

• perimeter

• precaution

• optometry

• diameter

something that came before something else and may have influenced or caused it

• symmetry

• antecedent

• postpone

• antebellum

the profession of examining people's eyes to find out if they need eyeglasses or medical treatment

• barometer

• optometry

• perimeter

• forecast

to decide that something which had been planned for a particular time will be done at a later time instead

• perimeter

• diameter

• antecedent

• postpone

the quality of something that has two sides or halves that are the same or very close in size, shape, and position.

• optometry

• symmetry

• precaution

• postpone