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holdfast

[hohld-fast, -fahst] /ˈhoʊldˌfæst, -ˌfɑst/
noun
1.
something used to hold or secure a thing in place; a catch, hook, clamp, etc.
2.
Botany, Mycology. any of several rootlike or suckerlike organs or parts serving for attachment.
Origin
1550-1560
1550-60; noun use of verb phrase hold fast
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for holdfast
  • The stalk is attached to the sea floor by a holdfast at the base of the stem.
  • The holdfast, at the base of the alga, attaches it to the rocks on which it lives.
British Dictionary definitions for holdfast

holdfast

/ˈhəʊldˌfɑːst/
noun
1.
  1. the act of gripping strongly
  2. such a grip
2.
any device used to secure an object, such as a hook, clamp, etc
3.
the organ of attachment of a seaweed or related plant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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15
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