cofferdam

cof·fer·dam

noun \-ˌdam\

Definition of COFFERDAM

1

: a watertight enclosure from which water is pumped to expose the bottom of a body of water and permit construction (as of a pier)

2

: a watertight structure for making repairs below the waterline of a ship

First Known Use of COFFERDAM

1736

Rhymes with COFFERDAM

aerogram, Amsterdam, anagram, Birmingham, Boulder Dam, cablegram, centigram, Christogram, chronogram, cryptogram, decagram, deprogram, diagram, diaphragm, epigram, fluid dram, giant clam, hard-shell clam, hexagram, histogram, Hohokam, hologram, kilogram, logogram, mammogram, milligram, Minicam, monogram, nomogram, oriflamme, pentagram, phonogram, pictogram, reprogram, Rotterdam, scattergram, self-exam, skiagram, soft-shell clam, sonogram, subprogram, telegram, tetradrachm, thank-you-ma'am, tinker's damn, Uncle Sam