Starfish Have __ Cups on Their Tube Feet
This page is the CodyCross answer for the clue below from All Things Water, Group 1300, Puzzle 4 (Squid and Octopus).
Question is: Starfish Have __ Cups on Their Tube Feet
and the answer is: SUCTION
Word Meaning:
SUCTION — (physics) A force which pushes matter from one space into another because the pressure inside the second space is lower than the pressure in the first.
Definitions from Wiktionary.