browse words by letter
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
terrestrial |
4 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Terrestrial \Ter*res"tri*al\, n. An inhabitant of the earth. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Terrestrial \Ter*res"tri*al\, a. [L. terrestris, from terra the earth. See {Terrace}.] 1. Of or pertaining to the earth; existing on the earth; earthly; as terrestrial animals. ``Bodies terrestrial.'' --1 Cor. xv 40. 2. Representing, or consisting of the earth; as a terrestrial globe. ``The dark terrestrial ball.'' --Addison. 3. Of or pertaining to the world, or to the present state; sublunary; mundane. Vain labors of terrestrial wit. --Spenser. A genius bright and base, Of towering talents, and terrestrial aims. --Young. 4. Consisting of land, in distinction from water; belonging to or inhabiting, the land or ground, in distinction from trees, water, or the like as terrestrial serpents. The terrestrial parts of the globe. --Woodward. 5. Adapted for the observation of objects on land and on the earth; as a terrestrial telescope, in distinction from an astronomical telescope. -- {Ter*res"tri*al*ly}, adv -- {Ter*res"tri*al*ness}, n. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Eyepiece \Eye"piece`\, n. (Opt.) The lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. {Collimating eyepiece}. See under {Collimate}. {Negative}, or {Huyghenian}, {eyepiece}, an eyepiece consisting of two plano-convex lenses with their curved surfaces turned toward the object glass, and separated from each other by about half the sum of their focal distances, the image viewed by the eye being formed between the two lenses. it was devised by Huyghens who applied it to the telescope. Campani applied it to the microscope, whence it is sometimes called {Campani's eyepiece}. {Positive eyepiece}, an eyepiece consisting of two plano-convex lenses placed with their curved surfaces toward each other and separated by a distance somewhat less than the focal distance of the one nearest eye, the image of the object viewed being beyond both lenses; -- called also from the name of the inventor, {Ramsden's eyepiece}. {terrestrial}, or {Erecting eyepiece}, an eyepiece used in telescopes for viewing terrestrial objects, consisting of three or usually four lenses, so arranged as to present the image of the object viewed in an erect position. From WordNet r 1.6 [wn]: terrestrial adj 1: of or relating to or inhabiting the land as opposed to the sea or air [syn: {tellurian}, {telluric}, {terrene}] 2: of or relating to or characteristic of the planet Earth or its inhabitants; "planetary rumblings and eructations"- L.C.Eiseley ; "the planetary tilt"; "this terrestrial ball" [syn: {planetary}] 3: operating or living or growing on land [syn: {land(a)}] [ant: {amphibious}, {aquatic}] 4: concerned with the world or worldly matters; "mundane affairs"; "he developed an immense terrestrial practicality" [syn: {mundane}] 5: of this earth; "transcendental motives for sublunary actions"; "fleeting sublunary pleasures"; "the nearest to an angelic being that treads this terrestrial ball" [syn: {sublunar}, {sublunary}]
more about terrestrial
This work is licensed under a
