en grave peligro de extinción
adv.
on the verge of extinction
Additional comments:
To add entries to your own vocabulary, become a member of Reverso community or login if you are already a member.
It's easy and only takes a few seconds:
grave
adj
1 (Med)
[enfermedad, estado] serious
estar grave to be seriously ill
hubo 20 heridos graves there were 20 people seriously injured
2
(=serio) serious
(=importante) important, momentous
la situación es grave the situation is serious
3
[carácter] serious, dignified
y otros hombres graves and other worthy men
4 (Mús)
[nota, tono] low, deep
[voz] deep
5 (Ling)
[acento] grave
[palabra] stressed on the penultimate syllable
Translation Spanish - English Collins Dictionary  

To add entries to your own vocabulary, become a member of Reverso community or login if you are already a member.
It's easy and only takes a few seconds:
- Create your own vocabulary list
- Contribute to the Collaborative Dictionary
- Improve and share your linguistic knowledge
"Collins Spanish Dictionary 8th edition published in 2005 © William Collins Sons & Co Ltd 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005"