Being what was wanted or needed. used to greet someone in polite or friendly way. instance or manner of greeting someone. To greet someone who has just arrived.

person who buys goods or services from shop or business.

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

The action or process of preparing something, or preparing for something..

The specific use of a machine, idea, or discovery. Requests for jobs, building permissions etc..

To carry out an action well or successfully.

small part or quantity intended to show what whole is like. Small quantities of something used as a taster. take sample or samples of something for analysis.

set of DNA sequences representing entire set of genes of organism.

Concerning the set of genetic material in a cell.

Having power or authority.

To have a particular opinion about something.

relating to biology. substance of biological origin used as drug, vaccine, pesticide, etc..

sequence of industrial, administrative, or other processes.

document in which data is arranged in rows and columns.

devotion of time and attention to gaining knowledge of academic subject. Rooms that a person studies or reads in. To focus on learning something usually at school.