'Spike lavender' definitions:

Definition of 'spike lavender'

noun

Mediterranean plant with pale purple flowers that yields spike lavender oil [syn: spike lavender, French lavender, Lavandula latifolia]

From: GCIDE

Lavender \Lav"en*der\, n. [OE. lavendre, F. lavande, It. lavanda lavender, a washing, fr. L. lavare to wash; cf. It. lsavendola, LL. lavendula. So called because it was used in bathing and washing. See Lave. to wash, and cf. Lavender.]
1. (Bot.) An aromatic plant of the genus Lavandula (Lavandula vera), common in the south of Europe. It yields and oil used in medicine and perfumery. The {Spike lavender} (Lavandula Spica) yields a coarser oil (oil of spike), used in the arts. [1913 Webster]
2. The pale, purplish color of lavender flowers, paler and more delicate than lilac. [1913 Webster]
Lavender cotton (Bot.), a low, twiggy, aromatic shrub (Santolina Cham[ae]cyparissus) of the Mediterranean region, formerly used as a vermifuge, etc., and still used to keep moths from wardrobes. Also called {ground cypress}.
Lavender water, a perfume, toilet water, or shaving lotion containing the essential oil of lavender, and sometimes the essential oil of bergamot, and essence of ambergris.
Sea lavender. (Bot.) See Marsh rosemary.
To lay in lavender. (a) To lay away, as clothing, with sprigs of lavender. (b) To pawn. [Obs.] [1913 Webster +PJC]