(Redirected from Opportunistic infections) An opportunistic infection is an infection caused by pathogens (bacteria, viruses, fungi, or protozoa) that take advantage of an opportunity not normally available, such as a host with a weakened immune system, an altered microbiota (such as a disrupted gut flora), or breached integumentary barriers.
If someone is described as being 'rough around the edges' it means they are generally good but have a few faults on the outside. Rough around the edges has many meanings: Worn out; Not polished or refined; Not great but not bad either; ans Unkempt.
hard edges/sharp edges definition. An edge is the place where two different colors, textures or values meet. Edges may be characterized in a variety of ways. Hard edges are edges that portray a strong contrast between one texture/color/value with another. These edges are hard and crisp, and as such they grab the eye's attention. Share.