topo-, top-, -topia, -topy, -topism, -topic

(Greek: place, a position, region, local, localized)

1. A condition in which an organ or substance is not in its natural or proper place; such as, an ectopic pregnancy that develops outside the uterus or an ectopic heartbeat.
2. A displacement or malposition; especially, if congenital.
A place in which human society, natural conditions, etc., are so ideally perfect that there is complete contentment.
1. Occurring at an abnormal place or upon the wrong part of the body.
2. Malposition, especially if congenital (present at birth).
3. In biology, occurring in a wide variety of habitats.
4. In neuropathology, displacement of gray matter, typically into deep cerebral white matter.
isotope (s), isotopes (pl)
1. One of two or more forms of a chemical element having the same properties and the same atomic number but different mass numbers or atomic weights.
2. Isotope literally means, "the same place, an equal place".
3. Elements that occupy the same place in the periodic table of the elements, sharing common chemical properties, but having different atomic weights (depending on the number of neutrons carried by each nucleus).

The decay rates of a number of radioactive isotopes are valuable clocks for archeologists, paleontologists, and geologists.

normotopia (s) (noun), normotopias (pl)
A condition in which there is an ordinary placement or location of an organ in the body: During the veterinarian anatomy courses which Pablo studied, he learned the normotopias for many common household pets.
A future world in which there will be a chemical or pharmaceutical product not only to treat each disease but also to counteract each inconvenient symptom of life.
phlebectopy, phlebectopia
1. Displacement of a vein.
2. The loction of one or more veins in an unusual part of the anatomy.
3. Abnormal position of a vein.
photopia, photopic, photopic vision
1. Relating to vision with the normal eyes in bright light; for example, day vision.
2. Pertaining to vision in the light; said of the eyes which have become light-adapted.
3. Sometimes applicable to seeing what appears to be sparks in front of the eyes.

A person can recognize the transition from photopic vision to scotopic (night) vision with the disappearance of color perception, which is replaced by shades of black and white.

Vision with eyes that are adapted to normal bright daylight.
1. The adaptation of the eye to darkness.
2. Loss of color perception, with the ability to discern only shades of black and white.
3. Vision when the eye is adapted to the dark; also: night vision, rod vision, and twilight vision.
skeletopia (s) (noun), skeletopias (pl)
The position of an organ in relation to the bones of the body.
1. Displacement of a ligament.
2. An unusual situation of a ligament.