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The Collaborative International Dictionary
Denticulation

Denticulation \Den*tic`u*la"tion\, n.

  1. The state of being set with small notches or teeth.
    --Grew.

  2. (Bot. & Zo["o]l.) A diminutive tooth; a denticle.

Wiktionary
denticulation

n. 1 The state of being set with small notches or teeth. 2 (context botany zoology English) A small tooth; a denticle.