vad-, vas-

(Latin: to go, to walk)

Tending to invade the walls of blood vessels.
evadable (adjective)
1. To escape or to manage not to do something, or to manage to stop something from happening, usually by ingenuity or guile.
2. To avoid, or to shun, doing something unpleasant, especially something that is a moral or legal obligation.
3. To avoid, or to stay clear of, dealing with or responding directly to something.
4. To avoid fulfilling, answering, or performing anything.
5. To be difficult or impossible for someone to find, obtain, or achieve: "Being successful in his lexicographic work has always evaded him."
evasion (i VAY zhuhn) (s) (noun), evasions (pl)
An act of avoiding something unpleasant or to manage not to do anything which should be done: Al can't continue with his evasion of taking the final exam if he wants to pass the course in chemistry.

When Sara leaned forward to kiss Jerome goodbye, after breaking up with him to be with another person, he made an evasion by pretending to sneeze.

Similar to podosomes; however, most researchers define podosomes as more dynamic than invadopodia and smaller; one to two micrometers in diameter compared to eight to ten micrometers.

Some researchers have suggested that podosomes form first and then mature into invadopodia, but no consesus exists among cell biologists, yet.

Feetlike structures aid the necessary migrations of immune and other cells, but they also include the deadly wanderings of cancer cells because they exploit the same ambulatory skills to spread.

—"Podosomes and Invadopodia Help Mobile Cells Step Lively" by Jean Marx; Science, June 30, 2006; pages 1868-1869.
pervade (verb), pervades; pervaded; pervading
To spread through or to be in every part of something or of people: "Cruel wars have pervaded throughout centuries of history."

"The feeling of doom pervaded the military when they realized that their enemy was attacking with such superior forces."