Loblolly bay (Bot.), an elegant white-flowered evergreen shrub or small tree, of the genus Gordonia (Gordonia Lasianthus), growing in the maritime parts of the Southern United States. Its bark is sometimes used in tanning. Also, a similar West Indian tree (Laplacea hæmatoxylon). -- Loblolly boy, a surgeon's attendant on shipboard. Smollett. -- Loblolly pine (Bot.), a kind of pitch pine found from Delaware southward along the coast; old field pine (Pinus Tæda). Also, Pinus Bahamensis, of the West Indies. -- Loblolly tree (Bot.), a name of several West Indian trees, having more or less leathery foliage, but alike in no other respect; as Pisonia subcordata, Cordia alba, and Cupania glabra.

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