different between merganser vs jacksaw

English

From Late Latin merganser, from Latin mergus (“waterfowl, diver”), from merg? (“to dip, immerse”) + ?nser (“goose”).

merganser (plural mergansers)

Any of various diving ducks of the genera Mergus or Lophodytes, which feed on fish and have a sharply serrated bill.

†Auckland merganser (also Auckland Islands merganser), Mergus australis (extinct)
Brazilian merganser, Mergus octosetaceus
common merganser, Mergus merganser
hooded merganser, Lophodytes cucullatus
red-breasted merganser, Mergus serrator
scaly-sided merganser, Mergus squamatus
typical merganser, Mergus

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

jacksaw (plural jacksaws)

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