perihelion

• POS: Noun
• HYPHEN: per=i=he=li=on

CIDE DICTIONARY

perihelion, n. [NL., fr. Gr. about, near + the sun.].

 That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.  [1913 Webster]

OXFORD DICTIONARY

perihelion, n. (pl. perihelia) the point of a planet's or comet's orbit nearest to the sun's centre.

Etymology

Graecized f. mod.L perihelium (as PERI-, Gk helios sun)

ROGET THESAURUS

perihelion

Nearness

N nearness, proximity, propinquity, vicinity, vicinage, neighborhood, adjacency, contiguity, short distance, short step, short cut, earshot, close quarters, stone's throw, bow shot, gun shot, pistol shot, hair's breadth, span, purlieus, neighborhood, vicinage, environs, alentours, suburbs, confines, banlieue, borderland, whereabouts, bystander, neighbor, borderer, approach, convergence, perihelion, near, nigh, close at hand, near at hand, close, neighboring, bordering upon, contiguous, adjacent, adjoining, proximate, proximal, at hand, handy, near the mark, near run, home, intimate, near, nigh, hard by, fast by, close to, close upon, hard upon, at the point of, next door to, within reach, within call, within hearing, within earshot, within an ace of, but a step, not far from, at no great distance, on the verge of, on the brink of, on the skirts of, in the environs, at one's door, at one's feet, at one's elbow, at one's finger's end, at one's side, on the tip of one's tongue, under one's nose, within a stone's throw, in sight of, in presence of, at close quarters, cheek by jole, cheek by jowl, beside, alongside, side by side, tete-a-tete, in juxtaposition, yardarm to yardarm, at the heels of, on the confines of, at the threshold, bordering upon, verging to, in the way, about, hereabouts, thereabouts, roughly, in round numbers, approximately, approximatively, as good as, well-nigh.