Sen"ti*nel , v. t. [imp. & p. p. Sentineled (?) or Sentinelled; p. pr. &
vb. n. Sentineling or Sentinelling.]
1. To watch over
like a sentinel. "To sentinel enchanted land." [R.] Sir W. Scott.
2. To furnish with a sentinel; to place under the guard of a sentinel or sentinels.
Sen"ti*nel , n. [F. sentinelle (cf. It.
sentinella); probably originally, a litle path, the sentinel's beat,, and a dim. of a word meaning, path; cf. F. sente path. L. semita; and OF. sentine,
sentele, senteret, diminutive
words. Cf. Sentry.]
1.
One who watches or guards; specifically
(Mil.), a soldier set to guard
an army, camp, or other place, from surprise, to observe the approach of danger, and give notice of it;
a sentry.
The sentinels who paced the
ramparts.
Macaulay. 2. Watch; guard. [Obs.] "That princes do keep due sentinel." Bacon.
3. (Zoöl.) A marine crab (Podophthalmus vigil) native of the Indian
Ocean, remarkable for the great
length of its eyestalks; -- called also sentinel crab.