n. (US fetus) (pt tuses) unborn mammalian offspring, esp. a human embryo of eight weeks or more. n foetal adj. [Latin fetus offspring] fog n. 1 thick cloud of water droplets or smoke suspended at or near the earth’s surface. 2 cloudiness on a photographic negative etc. 3 uncertain or confused position or state. a. (gg) 1 cover or become covered with or as with fog. 2 perplex. [perhaps a backformation from FOGGY]
