heliopause

NOUN
10 LETTERS · STARTS WITH H

heliopause is a valid 10-letter word worth 15 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
H4E1L1I1O1P3A1U1S1E1
4 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =15 PTS
DOUBLE WORD → 30TRIPLE WORD → 45
MEANING

What does heliopause mean?

NOUN · 1 SENSE
1

The boundary marking the edge of the sun's influence; the boundary (roughly 100 AU from the sun) between the interplanetary medium and the interstellar medium; where the solar wind from the sun and the radiation from other stars meet.