recumbent
Concise Oxford English Dictionary © 2008 Oxford University Press:
recumbent /rɪˈkʌmb(ə)nt/
▶adjective
- 1 lying down.
- 2 (of a plant) growing close to the ground.
– derivatives
recumbency noun,
recumbently adverb.
recumbency noun,
recumbently adverb.
– origin C17: from L. recumbent-, recumbere ‘recline’, from re- ‘back’ + a verb rel. to cubare ‘to lie’.
'recumbent' also found in these Oxford entries:

