Etymology

From flow +‎ topCategory:English compound terms#FLOWTOP.

Pronunciation

• (US) IPA^(key): /ˈfloʊtɑp/Category:English 2-syllable words#FLOWTOPCategory:English terms with IPA pronunciation#FLOWTOP

Noun

flowtop (plural flowtops)Category:English lemmas#FLOWTOPCategory:English nouns#FLOWTOPCategory:English countable nouns#FLOWTOPCategory:English entries with incorrect language header#FLOWTOPCategory:Pages with entries#FLOWTOPCategory:Pages with 1 entry#FLOWTOP

1. (geologyCategory:en:Geology#FLOWTOP) The solid crust on a moving lava flow.
   • 2007 September 21, Jaeger et al., "Athabasca Valles, Mars: A Lava-Draped Channel System" in Science 317(5845), page 1710 :

     they formed as gas vented from fixed sources at depth, ripping continuous openings through the moving flowtop.