noun, plural haptera [hap-tuh-ter-uh] . Biology.
a structure by which a fungus, aquatic plant, or algae colony attaches to an object; a holdfast.

1890–95; apparently a pseudo-Gk derivative of Greek háptein to grasp and -tēr agentive suffix

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World English Dictionary
hapteron (ˈhæptərɒn)
a cell or group of cells that occurs in certain plants, esp seaweeds, and attaches the plant to its substratum; holdfast
[C20: from Greek haptein to make fast]

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