Sub-:前缀的意思意思下,下面的更少than normal, secondary, less than fully. As insubacute,subaortic stenosis,subarachnoid,subclavian,subclinical disease,subcutaneous,subdural,subglottis,subjacent,sublingual,subluxation, andsubtotal hysterectomy. From the Latin preposition sub meaning under.
See also:Hypo-.
![](https://images.rxlist.com//images/slideshow/heart-disease-visual-guide-s1-arteriogram-of-healthy-heart.jpg)