pectination

from The Century Dictionary.

• noun The state or condition of being pectinate.
• noun That which is pectinate; a comb-like structure; a pecten. See cut under pecten.
• noun The state of being shut together like the teeth of two combs.

from the GNU version of the Collaborative International Dictionary of English.

• noun The state of being pectinated; that which is pectinated.
• noun The act of combing; the combing of the head.
• noun (Nat. Hist.) Comblike toothing.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The state of being pectinated; that which is pectinated.
• noun The act of combing; the combing of the head.
• noun biology comb-like toothing