Definition of holdfast
1 : something to which something else may be firmly secured
2a : a part by which a plant clings to a flat surfaceb : an organ by which a parasitic animal attaches itself to its host
Recent Examples of holdfast from the Web
The vine also produces holdfasts, and is consequently an excellent tree climber, growing aggressively upward, eventually strangling its host.
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First Known Use of holdfast
Medical Definition of holdfast
: an organ by which a parasitic animal (as a tapeworm) attaches itself to its host
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