'tenaciously' is a correct and usable word in written English.
You can use it when referring to someone or something that is persistent and determined about something. For example, "He tenaciously pursued his dream of becoming a professional singer."
This is because water can be contaminated by Acanthamoeba organisms that stick tenaciously to contact lenses and cause ulcers in the cornea.
To get to the bottom of why dinosaurs grip our imagination so tenaciously, we need to dig deeper.
On a state-run television channel Mr Khamenei said that the next president should "tenaciously resist pressure from enemies", a presumed reference to nuclear talks with the West.Conservatives chastise Mr Rohani for having co-operated with European governments in 2003 to suspend nuclear enrichment.
That should help him hang on as tenaciously as his ruling party, Golkar.
Mazar fell, a strategic point which the Taliban had defended quite tenaciously; then, in a dramatic five-day offensive, other cities, and then Kabul.
Though they claim to want to give peace a chance, a signal to move on the capital could come any day.Meanwhile, a defiant Mr Gbagbo, holed up in the presidential palace a stone's throw away from his rival, clings tenaciously to power.
Already feeling let down by Mr Obama's tentative policies on issues such as gay rights, the Democratic base is also likely to push tenaciously for an inquiry.
These stem overwhelmingly from the pressure of fighting, in Quebec, for the cause of a united Canada but not so tenaciously as to alienate the province's "soft nationalists", those who see Canada as a sensible arrangement but reserve their emotional attachment for French Quebec.
He hopes the next dictator international justice will catch up with will be Than Shwe, the junta's leader.But the fear of retribution may make the junta resist reform even more tenaciously.
Infant titi and owl monkeys spend much of their time clinging tenaciously to their fathers' fur.
As the two main political parties decline, so they cling more tenaciously to power.
