Definition of "suicidal" []

• Causing, intending, or relating to suicide: a suicidal act; suicidal impulses. (adjective)
• Dangerous to oneself or to one's interests; self-destructive or ruinous: a suicidal corporate takeover strategy. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The word "ideation" also shows up in the phrase "suicidal ideation," meaning "thinking, often obsessively, about harming yourself.""
• "Pichot MH, Auzepy P, Richard C. Acute drug poisoning in suicidal elderly patients 70 years old and over. 92 cases in a medical ICU."
• "After that comes what I call the suicidal phase, where they CAN and WILL try anything and you are constantly on guard against their innocent joy in, for example, electrical cable or toilet brushes."