daily-living aid see assistive technology.
Penrose staircase see staircase illusion. [Lionel S. Penros...
Sorry, "hand-arm-vibration-syndrome-havs" is not in the Dictionary of Psychology...
pressure gradient a gradual reduction in pressure extending...
ovulation n. the production of a mature secondary oocyte (s...
spider phobia a persistent and irrational fear of spiders....