Causes of a ruptured, or perforated, eardrum may include: 1  Middle ear infection (otitis media). 2  A middle ear infection often results in the accumulation of fluids in your middle ear. 3  Pressure from these fluids can cause the eardrum to rupture.auses of a ruptured, or perforated, eardrum may include: 1  Middle ear infection (otitis media). 2  A middle ear infection often results in the accumulation of fluids in your middle ear. 3  Pressure from these fluids can cause the eardrum to rupture.
Wiktionary(3.00 / 1 vote)Rate this definition: 1  speculation(Noun) The process of thinking or meditating on a subject. 2  speculation(Noun) A judgment or conclusion reached by speculating. 3  speculation(Noun) An investment involving higher than normal risk in order to obtain a higher than normal return.
Definition - What does Astroturfing mean? Astroturfing is the practice of using deceptive communications to make a corporate or political message appear natural and organic, as if it comes from a very distributed group of individuals or naturally emerging social movements.