striving to achieve or attain something in face of difficulty or resistance. To try very hard to do something difficult.

enough.

Official in charge of a governmental department.

allele that has undergone segregation. set apart from rest or from each other.

restricted in size, amount, etc.. To stop or prevent an increase past a point.

disease or period of sickness affecting body or mind. Unhealthy conditions of the mind or body.

relating to science or practice of medicine. A health check or test.

arithmetical value expressed by word, symbol, or figure. Particular songs or dances performed during shows. To assign a sequence within a group, series, set.

spreading out over large area in untidy or irregular way. To spread out in an uncontrolled way.

unpleasant or evil thing or creature supposedly sent by someone with paranormal or magical powers to warn. To give information or greetings to someone.

An area of land that is controlled by a government.

load with too much to carry.

affecting or concerning most people or things. Top ranked officer in the army.

intended to protect.

needing much effort or skill to accomplish, deal with, or understand.