laterite
Concise Oxford English Dictionary © 2008 Oxford University Press:
laterite /ˈlatərʌɪt/
▶noun a reddish clayey material, hard when dry, forming a topsoil in some tropical regions and sometimes used for building.
– derivatives
lateritic /-ˈrɪtɪk/ adjective.
lateritic /-ˈrɪtɪk/ adjective.
'laterite' also found in these Oxford entries:

