[f. BORE v.1 + -ING2.]

1

  1.  That bores or perforates; esp. applied to certain insects and mollusks.

2

1853.  De la Beche, Geol. Observ., xxvi. 485. There were bare patches of carboniferous limestone in the sea, and into these the boring animals of the time burrowed.

3

1878.  Huxley, Physiogr., 208. The perforations in the column of the temple are the work of boring shell-fish.

4

  2.  Of a horse: That thrusts his head forward.

5

1875.  ‘Stonehenge,’ Brit. Sports, II. III. i. § 3. 523. In every way, therefore, it acts well with a boring horse.

6