marrow squash

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An edible squash having very large, elongated greenish fruit.

GNU Webster's 1913

1. n. (Bot.) a name given to several varieties of squash, esp. to the Boston marrow, an ovoid fruit, pointed at both ends, and with reddish yellow flesh, and to the vegetable marrow, a variety of an ovoid form, and having a soft texture and fine grain resembling marrow.

WordNet 3.0

1. n. any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh