Birth Control: Female Barrier Methods | Young Men's Health
barrier - "(DOD) A coordinated series of obstacles designed or employed to channel, direct, restrict, delay, or stop the movement of an opposing force and to impose additional losses in personnel, time,
What do you mean by barrier potential and depletion region of a pn junction?
By: Cherry Dale D. Daumar - ppt download
What is the meaning of "barrier"? - Question about English (UK) | HiNative