(ˈhæptərɒn) n (Botany) 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]
hapteron
hapteron
[′hap·tə‚rän] (botany) A disklike holdfast on the stem of certain algae.