'ratlings' definitions:
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Ratlines \Rat"lines\, Ratlins \Rat"lins\ (r[a^]t"l[i^]nz), n.
pl. [Of uncertain origin.] (Naut.)
The small transverse ropes attached to the shrouds and
forming the steps of a rope ladder. [Written also ratlings,
and rattlings.] --Totten.
[1913 Webster]
