Reproductive cells (3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">reproductive cells</span>' is the definition.<br/ ><span class="explanation-format__explanation">(ovum is a kind of reproductive cell)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ova that I've seen before include "Multiple Latin eggs" , "Likely end for Russian Fed cup players" , "Female reproductive cells" , "Eggs; sounds like above" , "Release of women" .)
(Another definition for spores that I've seen is " Tiny reproductive cells as of fungi or ferns".)