systematic investigation into and study of materials and sources. investigate systematically.

(of female mammal) secrete milk.

Concerning electromagnetic radiation. To heat or cook something in a microwave.

To act in a certain way toward someone.

For a reason.

portion of food served to one person at one time. To make something better or less difficult.

having effect of making something less warm or hot. Process of becoming cooler; a falling temperature. (Of an emotion, etc.) to become less strongly felt.

To know the meaning of language, what someone says.

still existing, present, or in use. To stay in a place when other people have gone.

large oval brown seed of tropical palm, consisting of hard woody husk surrounded by fibre, lined with edible white flesh.

pleasant, sweet smell.

plan or course of action. determine size or amount.

To increase the speed or rate of something.

Able to be maintained without running out of.

(of liquid) having been purified by undergoing heating and condensation. To collect the pure form by heating liquid.