The word "spermatoplast" is spelled "s-p-e-r-m-a-t-o-p-l-a-s-t". In IPA phonetic transcription, it is pronounced /spɜːrmətəʊplæst/. The first syllable "sperma" is pronounced with a long "e" sound followed by a short "a". The second syllable "to" is pronounced with a short "o" sound followed by a schwa. The third syllable "plast" is pronounced with a short "a" sound followed by a voiceless "s" sound and a t sound. The word refers to a developing sperm cell.