All the white blood cells are able to move like an amoeba, and can migrate out of blood vessels into the surrounding tissues. Note-it is easy to confuse the different leucocytes in blood smears. To identify them, you need to look for the shape of the nucleus, and compare their size, relative to that of a red blood cell.
peri-. a prefix meaning âabout,â âaroundâ (perimeter; periscope), âenclosing,â âsurroundingâ (pericardium), ânearâ (perigee; perihelion).
Word Origin and History for peri- Expand. word-forming element meaning around, about, enclosing, from Greek peri (prep.) around, about, beyond, cognate with Sanskrit pari around, about, through, Latin per, from PIE *per- (1) forward, through (see per).