DCHP-1 Online
seal patch 
a herd of seals.
See also: patch (def. 2)
- 1883 The steamers . . . can double and beat about in search of the "seal-patches" ; and when the prey is found they can hold on to the ice-fields. . . .
- 1883 The steamers . . . can double and beat about in search of the "seal-patches" ; and when the prey is found they can hold on to the ice-fields. . . .