Yes, ester is in the scrabble dictionary

...and is worth 5 points by itself.

find more words you can make below

Ester Definition

noun

Any of a class of organic compounds corresponding to the inorganic salts and formed from an organic acid and an alcohol.
from The American Heritage Dictionary of the English Language, 4th Edition
Any of a class of often fragrant organic compounds that can be represented by the formula RCOOR′ and that are usually formed by the reaction between an acid and an alcohol with elimination of water.
from Free Scrabble Dictionary

Find More Words!

Wildcard(?) letters appear in RED

Here are some other words you could make with the letters ESTER, you can also
use this lookup tool to help you find words with our scrabble word finder.

Top Words by points

Points

teres

5

2 letter words with ESTER

Points

es

2

et

2

te

2

er

2

re

2

3 letter words with ESTER

Points

tes

3

tee

3

set

3

ser

3

see

3

ret

3

res

3

ere

3

ers

3

ree

3

est

3

4 letter words with ESTER

Points

rees

4

tees

4

tree

4

sere

4

seer

4

erst

4

rets

4

rete

4

rest

4

5 letter words with ESTER

Points

teres

5

terse

5

trees

5

stere

5

steer

5

reset

5

reest

5

ester

5

Found 33 words in 0.14412 seconds