See Also: underclay(medicine)

hammock (oh) and underclay (medicine)


hammock (oh)



[Date: 1500-1600; Language: Spanish; Origin: hamaca, from Taino]
a large piece of cloth that is hung between two trees or posts so that you can sleep in it

underclay (medicine)


underclay
<geology> A stratum of clay lying beneath a coal bed, often containing the roots of coal plants, especially the Stigmaria.

Source: Websters Dictionary