This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Of, relating to, or existing in both space and time.

adj. Of or relating to space-time.

adj. Of, concerning, or existing in both space and time.

adj. Of or concerning spacetime.

adj. existing in both space and time; having both spatial extension and temporal duration

adj. of or relating to space and time together (having both spatial extension and temporal duration)

"– The events described in (2) occurred during a particular interval of time, but without spatiotemporal uniqueness, e.g., “once, during the year 1859, the average height of European males was 1.8 m.”"

comprehensive   

spatiotemporal gene expression    spatiotemporal continuity    spatiotemporal database   

geotemporal    temporospatial   

time-travel    hydrostatic