Index of English words, starting with "ef"

(1) - Efficient (n.) An efficient cause; a prime mover.
(2) - Efficient (n.) Causing effects; producing results; that makes the effect to be what it is; actively operative; not inactive, slack, or incapable; characterized by energetic and useful activity; as, an efficient officer, power.

(1) - Efficiently (adv.) With effect; effectively.

(1) - Effigy (n.) The image, likeness, or representation of a person, whether a full figure, or a part; an imitative figure; -- commonly applied to sculptured likenesses, as those on monuments, or to those of the heads of princes on coins and medals, sometimes applied to portraits.

(1) - Effloresce (v. i.) To become covered with a whitish crust or light crystallization, from a slow chemical change between some of the ingredients of the matter covered and an acid proceeding commonly from an external source; as, the walls of limestone caverns sometimes effloresce with nitrate of calcium in consequence of the action in consequence of nitric acid formed in the atmosphere.
(2) - Effloresce (v. i.) To change on the surface, or throughout, to a whitish, mealy, or crystalline powder, from a gradual decomposition, esp. from the loss of water, on simple exposure to the air; as, Glauber's salts, and many others, effloresce.
(3) - Effloresce (v. i.) To blossom forth.

(1) - Efflorescence (n.) The powder or crust thus formed.
(2) - Efflorescence (n.) The formation of the whitish powder or crust on the surface of efflorescing bodies, as salts, etc.
(3) - Efflorescence (n.) A redness of the skin; eruption, as in rash, measles, smallpox, scarlatina, etc.
(4) - Efflorescence (n.) Flowering, or state of flowering; the blooming of flowers; blowth.