gain
(organic chemistry) A tetracyclic diterpene found in brown coal.
Misspelling of rickettsias.
(architecture) A square or bevelled notch cut out of a girder, binding joist, or other timber which supports a floor beam, so as to receive the end of the floor beam.
(of a body of water) To make muddy; to make clear water into muddy water. / (transitive, idiomatic) To confuse (an issue or situaton); to obscure or obfuscate (an issue or situation).
大工は床梁がぴったり収まるように、桁の切り欠きを点検した。
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