![tube noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com tube noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com](https://www.oxfordlearnersdictionaries.com/media/american_english/fullsize/p/pac/packa/packaging_1.jpg)
tube noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com
![test-tube noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com test-tube noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com](https://www.oxfordlearnersdictionaries.com/media/english/fullsize/l/lab/labor/laboratory_equipment.png)
test-tube noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com
![Webster's practical dictionaryA practical dictionary of the English language, giving the correct spelling, pronunciation and definitions of words based on the Unabridged dictionary of Noah Webster .. . ainedtogether. —mail, n. Flexible Webster's practical dictionaryA practical dictionary of the English language, giving the correct spelling, pronunciation and definitions of words based on the Unabridged dictionary of Noah Webster .. . ainedtogether. —mail, n. Flexible](https://c8.alamy.com/comp/2AKJ5GP/websters-practical-dictionarya-practical-dictionary-of-the-english-language-giving-the-correct-spelling-pronunciation-and-definitions-of-words-based-on-the-unabridged-dictionary-of-noah-webster-ainedtogether-mail-n-flexible-armor-made-of-inter-laced-rings-pump-i-apump-consisting-of-an-end-less-chain-carrying-diskspassing-upward-through-awooden-tube-and-movingon-wheelsshot-w-jivt-w-0-cannon-balls-con-nected-by-a-chain-to-cutdown-masts-etc-stitchn-a-kind-of-stitch-in-sew-ing-made-by-interlockingthreads-wales-n-piyaiit-planks-bolted-toa-ships-sides-to-2AKJ5GP.jpg)