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back bulb

noun

Definition of back bulb 

: a pseudobulb on certain types of orchid plants that remains on the plant after the terminal growth has been removed and is used in the propagation of certain orchids

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First Known Use of back bulb

1942, in the meaning defined above

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Dictionary Entries near back bulb

backboneless

backbreak

backbreaking

back bulb

back-burn

back burner

back button

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The first known use of back bulb was in 1942

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