1. Toward an axis, as in a sunflower; the oldest flowers are near the edge, the youngest in the centre

See also: centripetal

• xeno-
• xenobiotic
• xenogeneic
• xenogenesis
• xenograft
• xenolith
• xenon
• Xenophanes
• xenophobe
• xenophobia
• xenophobic
• Xenophon
• Xenopodidae
• Xenopus
• Xenopus laevis
• Xenorhyncus
• Xenorhyncus asiaticus
• Xenosauridae
• Xenosaurus
• xenotime
• xenotransplant
• xenotransplantation
• xeranthemum
• Xeranthemum annuum
• xeric