| Date added | Word | Definition |
|---|---|---|
| 2021-04-16 | shipmind n. (1975) | an intelligent entity (alien or computer-based) that helps control a spacecraft |
| 2021-04-13 | rocketport n. (1931) | a place where rockets can take off and land; cf. spaceport n. |
| 2021-04-12 | warship n. (1898) | a military spaceship designed for combat |
| 2021-04-12 | fleet n. (1898) | = space fleet n. |
| 2021-04-12 | battleship n. (1900) | a military spaceship having heavy armor and powerful weapons |
| 2021-04-11 | Lunite n. (1928) | a native or inhabitant of Earth’s Moon; = Lunarian n.; Lunarite n. |
| 2021-04-11 | Lunarite n. (1888) | a native or inhabitant of Earth’s Moon; = Lunarian n.; Lunite n. |
| 2021-04-11 | Loonie n. (1941) | a native or inhabitant of Earth’s Moon; = Lunarian n.; Lunite n.; Lunarite n. |
| 2021-04-02 | scouter n. (1936) | = scout ship n. |
| 2021-04-02 | scout ship n. (1930) | a usu. small and fast spaceship used for reconnaissance |
| 2021-04-01 | sailship n. (1964) | a spacecraft using a solar sail as its chief method of propulsion |
| 2021-03-30 | NAFAL adj. (1969) | of space travel: at relativistic speed; of a spaceship: capable of travelling at relativistic speed |
| 2021-03-29 | armorplast n. (1964) | a strong protective material likened to plastic (as being light, flexible, or transparent) |
| 2021-03-29 | gravity n. (1930) | = gee n. 2 |
| 2021-03-25 | organlegging n. (1969) | the illegal trading of human organs for transplant; cf. organlegger n. |
| 2021-03-25 | meatspace n. (1993) | the physical world, in contrast to cyberspace or a virtual environment |
| 2021-03-25 | datapad n. (1962) | a thin handheld electronic device for viewing and manipulating information; a tablet computer |
| 2021-03-24 | escape ship n. (1932) | = lifeboat n.; lifeship n. |
| 2021-03-22 | mundane n. 1 (1946) | a non-imaginative story |
| 2021-03-19 | robotrix n. (1933) | a robot assigned a female identity; a robot with female or feminine characteristics |
| 2021-03-16 | fanarchistic adj. (1944) | preferring to avoid organized forms of fandom |
| 2021-03-16 | fanarchist n. (1955) | a fan who shuns organized fandom; a fan who advocates for anarchy |
| 2021-03-15 | xenopsychology n. (1972) | the psychology of alien races |
| 2021-03-15 | xenopsychologist n. (1980) | an expert in xenopsychology n. |
| 2021-03-10 | psychohistorian n. (1945) | an expert in psychohistory n. |
| 2021-03-08 | companion n. (1963) | in the British television series Doctor Who: any of the usually human characters who (regularly) travel with the Doctor |
| 2021-03-08 | regeneration n. (1978) | in the British television series Doctor Who: the process by which a Time Lord transforms themself into a new physical form, esp. after an experience that would otherwise be fatal; (also) a particular manifestation of a Time Lord |
| 2021-03-08 | Cyberman n. (1966) | in the British television series Doctor Who: one of a race of emotionless cybernetic humanoids |
| 2021-03-08 | time lord n. (1969) | in the British television series Doctor Who: one of a race of humanoid aliens from the planet Gallifrey who are able to control time-travel technology |
| 2021-03-02 | Earthish n. (1956) | a universal language of Earth; = Earthian n. 2 |
| 2021-03-01 | speeder n. (1932) | any of various small personal vehicles, typically travelling on or very close to the ground |
| 2021-03-01 | landspeeder n. (1977) | in the fictional universe of the Star Wars franchise: a small vehicle that uses antigravity technology to hover close to the ground |
| 2021-02-26 | autodoc n. (1966) | a system providing automated medical care |
| 2021-02-24 | tesser v. (1962) | in Madeleine L’Engle’s A Wrinkle in Time: to travel through space by means of a tesseract n. |
| 2021-02-24 | tesseract n. (1962) | in Madeleine L’Engle’s A Wrinkle in Time: a means of travelling through space by manipulating the dimensions of spacetime |
| 2021-02-23 | grimdark n. (2008) | a subgenre of (esp. fantasy) fiction characterized by a nihilistic, violent, and dystopian atmosphere or setting |
| 2021-02-22 | hyperspatial adj. (1934) | in or relating to hyperspace n. |
| 2021-02-22 | downtime adj. (1978) | esp. in time-travel contexts: in or from the past; cf. uptime adj. |
| 2021-02-22 | downtime adv. (1972) | esp. in time-travel contexts: in, into, or toward the past; cf. uptime adv. |
| 2021-02-21 | xenocidal adj. (1979) | of, pertaining to, or involving xenocide n. |
| 2021-02-20 | asterite n. (1933) | a native or inhabitant of an asteroid |
| 2021-02-20 | realspace n. (1973) | the ordinary universe; space that exists outside of hyperspace, wormholes, or other notional regions used for faster-than-light travel |
| 2021-02-19 | topside adv. (1933) | in or towards the upper parts of a spacecraft; (also) in or towards orbit |
| 2021-02-18 | Vulcan nerve pinch n. (1968) | a one-handed pinch delivered (chiefly by Vulcans) to the base of a person’s neck that immediately renders the victim unconscious |
| 2021-02-18 | Vulcan mind meld n. (1968) | = mind-meld n. |
| 2021-02-18 | Vulcan n. (1966) | in the fictional universe of the Star Trek franchise: a member of a humanoid alien race, characterized by strictly logical and rational thinking and the suppression of normal human emotions; (hence) a person regarded as having similar characteristics |
| 2021-02-18 | cryosleep n. (1972) | = cold sleep n. |
| 2021-02-13 | hubward adv. (1977) | (of a rotating or circular body, as a space station) near or towards the center, rather than the edge |
| 2021-02-12 | thud and blunder n. (1940) | (a disparaging term for) an adventure story that features violent exploits |
| 2021-02-11 | groundlubber n. (1939) | = groundhog n. |