s 1 u 1 p 3 e 1 r 1 f 4 e 1 c 3 u 1 n 1 d 2 a 1 t 1 i 1 o 1 n 1 s 1
17 letters · 25 points in Scrabble
Meaning
noun fertilization of two or more ova released during the same menstrual cycle by sperm from separate acts of coitus (especially by different males)