n.
Pronunciation: ' ä-g ə r
Function: noun
Etymology: Malay agar-agar
Date: 1889
1 : a gelatinous colloidal extractive of a red alga (as of the genera Gelidium, Gracilaria, and Eucheuma ) used especially in culture media or as a gelling and stabilizing agent in foods
2 : a culture medium containing agar