a machine or tool used to do a household job

Tool or piece of equipment

not harmful to the environment

a small, useful machine or device

which can save a person's life

to restart

to change or provide a substitute

the variety of life in the world or in a particular habitat or ecosystem.

relating to both biology and medicine

a cooking device to cook or heat the food

results in analytical devices to detect small levels of nutrients, toxins or microorganisms using miniature probes

(n.) something seen in advance; (v.) to view beforehand

exist or occur at a date earlier than something

not expensive

modern

old-fashioned in your ideas, methods, etc.

new parts to replace an old or broken part of a machine

a method which has been used successfully many times

to improve