vermiculite

noun
ver·​mic·​u·​lite | \ (ˌ)vər-ˈmi-kyə-ˌlīt How to pronounce vermiculite (audio) \

Definition of vermiculite

: any of various micaceous minerals that are hydrous silicates resulting usually from expansion of the granules of mica at high temperatures to give a lightweight highly water-absorbent material

Examples of vermiculite in a Sentence

Recent Examples on the Web Concrete mixed with vermiculite or perlite, or concrete and fiberglass blends, are much lighter. The Editors, Good Housekeeping, "Everything You Need to Know About Container Gardening," 13 Aug. 2018 Concrete mixed with vermiculite or perlite, or concrete and fiberglass blends, are much lighter. The Editors, Good Housekeeping, "Everything You Need to Know About Container Gardening," 13 Aug. 2018 Concrete mixed with vermiculite or perlite, or concrete and fiberglass blends, are much lighter. The Editors, Good Housekeeping, "Everything You Need to Know About Container Gardening," 13 Aug. 2018 Then put that end in damp sand, perlite, vermiculite or even soil. Jeff Lowenfels, Anchorage Daily News, "Introducing kalanchoe, the perfect houseplant for November in the north," 21 Nov. 2019 Repot the cutting in moist sterile seedling mix or vermiculite, cover with a plastic bag and put in a place out of direct sunlight. oregonlive, "Ask an expert: Get hydrangea to sprout roots for successful transplant," 30 Aug. 2019 Concrete mixed with vermiculite or perlite, or concrete and fiberglass blends, are much lighter. The Editors, Good Housekeeping, "Everything You Need to Know About Container Gardening," 13 Aug. 2018 In a warm location (about 70 degrees), start your seeds in a seed tray with a very light soil mix or fine vermiculite that drains quickly. Therese Ciesinski, Good Housekeeping, "How to Grow Lavender Anywhere — Even Indoors," 9 Aug. 2018 Simply snip off a 4-inch stem with leaves on it and put it in a pot filled with a soilless medium, such as vermiculite. The Editors, Good Housekeeping, "How to Grow the Most Gorgeous Chrysanthemums This Fall," 9 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vermiculite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of vermiculite

1824, in the meaning defined above

History and Etymology for vermiculite

Latin vermiculus "insect larva, grub" (from vermis "worm" + -culus, diminutive suffix) + -ite entry 1 — more at worm entry 1; so called from the worm-like forms taken by such minerals when heated by a blowpipe

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The first known use of vermiculite was in 1824

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Cite this Entry

“Vermiculite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vermiculite. Accessed 2 Dec. 2020.

More from Merriam-Webster on vermiculite

Britannica.com: Encyclopedia article about vermiculite

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