We found one dictionary that defines the word grapnel anchors:

General (1 matching dictionary)

1. grapnel anchors: Vocabulary.com

(Note: See grapnel_anchor as well.)

Definitions from WordNet (grapnel anchor) ▸ noun:  a light anchor for small boats ▸ Also see grapnel_anchor ▸ Words similar to grapnel anchors ▸ Usage examples for grapnel anchors ▸ Idioms related to grapnel anchors ▸ Wikipedia articles (New!) ▸ Words that often appear near grapnel anchors ▸ Rhymes of grapnel anchors ▸ Invented words related to grapnel anchors