† cytococcusn. [after scientific Latin cytococcus (1877 in the passage translated in quot. 1879)] Obsoleterare (in the terminology of Haeckel) the nucleus of a fertilized ovum (cf. cytulan.).
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1879 tr. E. Haeckel Evol. Man I. 176 I shall call it [sc. the fertilized egg-cell] the parent-cell (cytula), and its kernel (nucleus) the parent-kernel (cytococcus).