Alpestrine
(def 2).
adjective
(of plants) growing at high altitudes; subalpine
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- Alpha
the first letter of the Greek alphabet (A, α). the vowel sound represented by this letter. the first; beginning. (initial capital letter) Astronomy. used to designate the brightest star in a constellation. Chemistry. one of two or more isomeric compounds. the first in a series of related items: frequently used in chemistry and physics. Chiefly […]
- Alpha-adrenergic
of or relating to an alpha receptor.
- Alpha-adrenergic receptor
. a site on a cell that, upon interaction with epinephrine or norepinephrine, controls vasoconstriction, intestinal relaxation, pupil dilation, and other physiological processes. alpha-adrenergic receptor n. Any of various cell membrane receptors that can bind with norepinephrine and related substances that activate or block the actions of the cells containing such receptors; these cells initiate […]
- Alpha and omega
the beginning and the end. Rev. 1:8. the basic or essential element or elements: the alpha and omega of political reform. noun the first and last, a phrase used in Revelation 1:8 to signify God’s eternity the basic reason or meaning; most important part alpha and omega [(al-fuh; oh-may-guh, oh-meg-uh, oh-mee-guh)] The beginning and the […]
- Alpha angle
alpha angle alpha angle n. The angle between the visual and the optic axes as they cross at the nodal point of the eye. The angle between the visual line and the major axis of the corneal ellipse.