Whirlpool (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">whirlpool</span>' is the definition.<br/ ><span class="explanation-format__explanation">(an eddy is a small whirlpool)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for eddy that I've seen before include "Ripple" , "(Of fluid) circle round" , "move in circles" , "She founded Christian Science in 1866, d. 1910" , "Man" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">whirlpool</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that whirlpool can be written as vortex)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for vortex that I've seen before include "Whirl of water or air" , "Engulfing spiral" , "Powerful circular current of water" , "Whirlpool or maelstrom" , "Spinning mass of water or air" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">whirlpool</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that maelstrom is a type of whirlpool)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for maelstrom that I've seen before include "Confused situation" , "violent upheaval" , "great confusion" , "Eddy" , "danger to shipping" .)