| ARM | adrenergic receptor material; aerosol rebreathing method; ambulatory renal monitor; anorectal manome... |
|---|---|
| AROM | active range of motion; artificial rupture of membranes |
| PRM | phosphoribomutase; photoreceptor membrane; premature rupture of membranes; Primary Reference Materia... |
| RM | radical mastectomy; random migration; radon monitor; range of movement; red marrow; reference materi... |
| ROM | range of motion; read only memory; reduction of movement; regional office manual; removal of metal [... |
| foetal membranes | Thin layers of tissue which surround the embryo or foetus and provide for its nutrition, respiration, excretion and protection; they are the yolk sac, allantois, amnion, and chorion. (12 Dec 1998) |
|---|---|
| foetal membranes, premature rupture | Spontaneous rupture of amniotic sac before the onset of uterine contractions. (12 Dec 1998) |