the world > space > extension in space > expansion or enlargement > [adjective] > distending > swelling
swellingc1000
turgentc1440
yeasty1598
tumefying1615
turgid1620
tumid1626
outswelling1678
turgescent1727
inflating1807
intumescent1870
tumescent1882
tumefacient1885
tumescing1980
1980 Sci. Amer. Feb. 86/1 In a tumescing system such as the Yellowstone one the ring fractures could propagate downward, eventually penetrating the main magma chamber.