(1) Science laboratory

(2) Computer laboratory

(3) The US group was known chiefly as a breeder of animals such as rats for laboratory experiments until it bought Inveresk last year.

(4) Styrene, used in the manufacture of plastics, is highly toxic and causes cancer in laboratory animals.

(5) Laboratory assistant

(6) Save for contrived laboratory studies with bacteria and fruit flies, it cannot be witnessed.

(7) The tails of infant laboratory rats were cut off, generation after generation.

(8) The spectral variability of natural materials has been known for a long time from laboratory studies.

(9) Once the virus samples arrived from Hong Kong the experiment and laboratory analysis took only two weeks.

(10) Laboratory tests

(11) The general guideline for the care and use of laboratory animals was followed.

(12) The predictions of these models are in agreement with results from laboratory studies.

(13) It was outlawed after tests revealed it has caused leukaemia in laboratory mice.

(14) During my studies I involved myself in the use of laboratory animals.

(15) West Nile virus has been reported in laboratory workers exposed to infected animals.

(16) Much has been learned about sleep from laboratory studies of non-human animals.

(17) Thus, the list of species studied in his laboratory ranges from planaria to mammals.

(18) It has also been linked to certain types of cancerous tumors in laboratory rats.

(19) Compounds that are noxious to humans and laboratory rats are assumed to be toxic to birds, too.

(20) True, some laboratory rats developed tumours after being fed relatively large amounts daily for two years.