Arbitrary name for atomic isotopes suitable for launching rockets out of Earth's gravity well. [It was discovered in "Blowups Happen" though not called by that name.]
The deity that subjected Alex Hergensheimer to the ordeal of shifting among worlds,losing all he possessed each time. Yahweh had made a bet with Loki that the ordeal would not cause Alex, his most zealous believer, to lose his faith. [English transliteration of the Hebrew name for God.]
(Job: A Comedy of Justice)
Yancey (no first name)
Captain of the Aes Triplex, replacing Captain McAndrews.
(Space Cadet)
Dr. Cecil Yang
[mentioned in passing] Member of the Marston expedition into Sumatra, whose body was found with Zebulon Carter's.
[mentioned in passing] Manuel Garcia O'Kelly bet Bernardo de la Paz that the baseball team would win the World Series, but they ended the season in the cellar.
(The Moon Is a Harsh Mistress)
Year They Hanged the Lawyers
In Beulahland, this momentous event occurred in 1965. It is never mentioned in the history books, and information about it is restricted.
(The Number of the Beast)
The Yearbook of the Department of Agriculture
[mentioned in passing] The 1904 edition was used in Jubal Harshaw's story "Uncle Tobias" for "unsympathetic magic".
(The Number of the Beast)
The Years of Rising Waters
Events in the 15th century in Beulahland resulted in new shorelines, political upheaval, a resurgence of the Black Death, and mass emigration from Britain and the European lowlands to North America.
[mentioned in passing] Jake Salomon mentioned a man who spelled his name this way but pronounced it "Jones". (An inheritance was involved.)
(I Will Fear No Evil)
ZD9817
The star that was the New Frontiers' destination. Its planetary system was surprisingly like Sol's, with terrestrial planets nearer the sun and Jovian planets farther out.
Luna City teenager who flirted with Stuart LaJoie but complained when he became too familiar. Her male friends wanted to shove Stu through an airlock for the offense, but Manuel Garcia O'Kelly persuaded them to be content with LaJoie paying a fine and apologizing. Manny also scolded Tish for not having better sense.
(The Moon Is a Harsh Mistress)
Ziggie
Jubbulpore thief from whom Thorby Rudbek learned to steal; he had already lost a hand, and risked beheading if he were caught again.
(Citizen of the Galaxy)
Sgt. Charles Zim
Career ship's sergeant, Juan Rico's boot camp instructor and platoon leader at Camp Arthur Currie. He became the company commander at Camp Sergeant Spooky Smith. He was Johnnie's platoon sergeant during Operation Royalty, and was given a field commission of brevet captain with the permanent rank of first lieutenant.
Drone probe launched six years after the Envoy disappeared; recorded the harshness (to humans) of Martian climate but also the existence of engineered ruins.
(Stranger in a Strange Land)
zombie drug
Brainwashing drug administered to Daniel Boone Davis during a fight with Belle Darkin. Its effect was that Davis had no will of his own, but was compelled to answer questions and obey orders.
(The Door Into Summer)
Zone Amber
Code name given to areas of possible puppet master infestation, a no man's land between definite infestations and definite free zones.
(The Puppet Masters)
Zone Green
Code name given to areas known to be free of puppet master infestation.
(The Puppet Masters)
Zone Red
Code name for areas known to be infested with puppet masters.