Full record for neutronium n.

Definition a material composed entirely of neutrons
OED requirements antedating 1930
Earliest cite E.E. 'Doc' Smith, ''Skylark Three
Comment Brian Ameringen submitted a 1949 cite from Fredric Brown.
Jonathan Stone posted a 1947 E.E. Smith cite to sci.physics that was verified and submitted by Mike Christie.
Steinn Sigurdsson suggested Baade & Zwicky's PNAS paper in about 1938, or Gamow in his book "Atomic Nuclei"; however, earlier cites have now been submitted, so we no longer need to find these references.
Mike Christie submitted a cite from a 1978 reprint of Murray Leinster's 1935 story "Proxima Centauri"; Alistair Durie verified this in its first magazine appearance.
Bill Seabrook located and Mike Christie confirmed a 1944 cite from Theodore Sturgeon's "Killdozer!"
Imran Ghory submitted a cite from a 1973 reprint of Isaac Asimov's "Black Friar of the Flame", which Fred Galvin verified in the 1942 first publication.
Rick Hauptmann submitted a 1931 cite from Jack Williamson's "The Stone from the Green Star".
Isaac Wilcott submitted a cite from the magazine serialization of E.E. Smith's "Skylark Three" (Amazing Stories, December 1930). Fred Galvin submitted cites from an earlier issues of the magazine serialization of E.E. Smith's "Skylark Three" (Amazing Stories, September 1930).

Earliest cite in the OED: 1967
Updated in September 2003 with a new earliest date of 1935.

Last modified 16 July, 2009

Citations for neutronium n.

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1930 Amazing Stories Sept. 564/1 We're going to project a fourth-order force out to grab us some densematerial, a pretty close approach to pure neutronium.
1930 Amazing Stories Sept. 564/1 ‘Neutronium? Pure mass?‥ I have been under the impressionthat it does not exist. Of what use can such a substance be to you?’ ‘Can't get pure neutronium, of course—couldn't use it if we could. Whatwe need and are going to get is a material of about two and a half millionspecific gravity.’
1930 E.E. Smith Skylark Three in Amazing Stories Oct. 615/1 Ten enormous supporting forces held the lens of neutronium immovable in the exact center of the upper end; at intervals down the shaft similar forces held variously-shaped lenses and prisms formed from zones of force; in the center of the bottom or floor of the towering structure was the double controlling system, with a universal visiplate facing each operator.
1931 J. Williamson Stone from Green Star in Amazing Stories Nov. 748/1 Thanks to her indestructible neutronium hull, the flier was not injured.
1935 ‘M. Leinster’ Proxima Centauri in Astounding Stories Mar. 43/2 He'd explain the disintegration field, which collapses the electrons of hydrogen so that it rises in atomic weight to helium, and the helium to lithium, while the oxygen of the water is split literally into neutronium and pure force.
1935 ‘M. Leinster’ Proxima Centauri in I. Asimov Before Golden Age 3 (1978) 94 He'd explain the disintegration field, which collapses the electrons of hydrogen so that it rises in atomic weight to helium, and the helium to lithium, while the oxygen of the water is split literally into neutronium and pure force.
1938 J. Binder If Science Reached Earth's Core in Thrilling Wonder Stories Oct. 98 (caption) In the future, scientists will be able to isolate or control the element neutronium. Neutronium, composed of collapsed atoms, would weigh sixty million tons per cubic inch.
1942 ‘H. Clement’ Proof in Astounding Sci. Fiction June 103/1 The first cities were of neutronium, like those of today, but it was necessary to stabilize the neutrons with fields of energy; at core temperature, as you know, neutronium is a gas.
1942 I. Asimov Black Friar of Flame in Planet Stories Spring 24/1 The treaty of Draconis has hung like neutronium around our neck these twenty years.
1944 ‘T. Sturgeon’ in Astounding Sci. Fiction Nov. 8/1 An insulator. The terminal product or by-product of all energy research—neutronium.
1947 Astounding Sci. Fiction Nov. 34/2 Did they think that the airlessness of absolute space, the heatlessness of absolute zero, the yieldlessness of absolute neutronium, could stop QADGOP THE MERCOTON?
1949 F. Brown in Super Sci. Stories Nov. 22/1 It negates the force that holds the electrons to the nucleus. In effect, it collapses matter into neutronium.
1966 L. Niven in If Oct. 18/2 The rocket motor would send the Skydiver crashing into eleven miles of neutronium.
1966 L. Niven in If Oct. 13/1 In one blazing explosion most of the star would change from a compressed mass of degenerate matter to a closely packed lump of neutrons: neutronium, theoretically the densest matter possible in this universe.
1973 I. Asimov Black Friar of Flame in Early AsimovI. 142 The treaty of Draconis has hung like neutronium around our neck these twenty years.
1977 J. Varley Ophiuchi Hotline (1994) 18 Far down the slope of the hole, halfway to infinity, a tiny mass of neutronium that had been Lilo was orbiting at almost the speed of light, releasing energy as it was stressed to the limits of matter before it finally decayed into oblivion.
1980 D. Brin Sundiver ii.vi. 63 One of the useful by products of this is commercial grade neutronium.
1984 D. Duane My Enemy, my Ally xii. 190 McCoy‥timed about half his pieces out, preparing to dump them on her like a ton of neutronium in six very visible moves.
1985 M. Larson Pawns & Symbols iv.43 The man dropped like a ton of neutronium.
1987 R. Silverberg Iron Star in Coll. Stories (1993)II. 52 That tiny ball of neutronium glowing dimly in our screens was the neutron star.
1993 V. Milan From Depths xiv. 178 His lone eye bored through her like a neutronium drill.
1996 J. Gunn Joy Machine xiv. 209 It wouldn't be difficult to jury-rig a device—say an antimatter payload contained within a neutronium shell.
1999 C. Pellegrino & G. Zebrowski Star Trek Next Generation: Dyson Sphere ii. 37 The neutronium membrane could, in theory, be pierced, perhaps even peeled back.
2000 A. Reynolds Revelation Space xxviii. 376 The relativistic projectile weapons were only slightly tardier, and reports of their success followed a few seconds later; spectacular stuttering pulses as the projectiles rained home, slugs of neutronium and antimatter slamming into the world.