X0 system

proper noun

The system that determines the sex of offspring among grasshoppers, crickets, cockroaches, and some other insects, in which females have two sex cells (XX) and males have only one sex cell (X0, or simply X; the 0 signifies the lack of another X).

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Meanings

proper noun
  1. biologyThe system that determines the sex of offspring among grasshoppers, crickets, cockroaches, and some other insects, in which females have two sex cells (XX) and males have only one sex cell (X0, or simply X; the 0 signifies the lack of another X).
Cite this entry
APA

X0 system. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/X0%20system

MLA

“X0 system.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/X0%20system. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “X0 system,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/X0%20system.

Source: X0 system on Wiktionary, CC BY-SA 4.0.