Extraterrestrial life forms are referred to as aliens. It is widely believed that silicon and ammonia could provide a basis for extraterrestrial life. Silicon-based Life: Many scientists do not accept the argument of silicon-based life.Both carbon and silicon form long chains of polymers.Carbon can form methane whereas silicon can form silane.mmonia-based Life: An ammonia solution could cause numerous chemical reactions and liquid ammonia is said to have chemical similarities with water. Ammonia not only dissolves organic molecules but also elemental metals.
reprimand (third-person singular simple present reprimands, present participle reprimanding, simple past and past participle reprimanded) To reprove in a formal or official way. 1983. Rosen, Stanley.
Wiktionary (0.00 / 0 votes) Rate this definition: reproach (Noun). A mild rebuke, or an implied criticism. reproach (Noun). Disgrace or shame. reproach (Verb). To criticize or rebuke someone. reproach (Verb). To disgrace, or bring shame upon someone.