> as lemmas

1903 Monthly Notices Royal Astron. Soc. 63 580 (table) Super dense silicate flint.

1930 Publ. Astron. Soc. Pacific 42 155 Such ‘super-dense’ matter does not lead to any contradictions with modern physical theories.

1977 Time (Atlantic ed.) 19 Sept. 50/1 The whole principle of diesel ignition is to raise the temperature of the fuel mixture by compressing it into a superdense mass in the cylinder.

2004 Focus Feb. 30/1 Evidence..to show that stars blew up as supernovae or collapsed as superdense white dwarfs.