Vocabulary Lesson 16

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

the weather

• diameter

• barometer

• symmetry

• perimeter

the quality of something that has two sides or halves that are the same or

very close in size, shape, and position

• perimeter

• symmetry

• optometry

• diameter

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

other

• diameter

• barometer

• optometry

• symmetry

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

form a shape

• barometer

• diameter

• optometry

• perimeter

the profession of examining people’s eyes to find out if they need

eyeglasses or medical treatment

• barometer

• diameter

• optometry

• perimeter

something that is done to prevent possible harm or trouble from

happening in the future

• forecast

• precaution

• antebellum

• postpone

to decide that something which had been planned for a particular time will

be done at a later time instead

• antebellum

• precaution

• postpone

• forecast

statement about what will happen in the future

• antebellum

• antecedent

• postpone

• forecast

something that came before something else and may have influenced or

caused it

• antecedent

• antebellum

• postpone

• forecast

occurring in the southern United States before the Civil War.

• forecast

• precaution

• antebellum

• antecedent