Webster's Dictionary 1913

1378

Heliolatry

He′li‐ol″a‐try (?), n. [Helio- + Gr. � service, worship.] Sun worship. See Sabianism.

1379

Heliolite

He″li‐o‐lite (?), n. [Helio- + -lite.] (Paleon.) A fossil coral of the genus Heliolites, having twelve-rayed cells. It is found in the Silurian rocks.

1380

Heliometer

He′li‐om″e‐ter (?), n. [Helio- + -meter: cf. F. héliomètre.] (Astron.) An instrument devised originally for measuring the diameter of the sun; now employed for delicate measurem...

1381

Heliometric

{ He′li‐o‐met″ric (?), He′li‐o‐met″ric‐al (?), } a. Of or pertaining to the heliometer, or to heliometry.

1382

Heliometry

He′li‐om″e‐try (?), n. The apart or practice of measuring the diameters of heavenly bodies, their relative distances, etc. See Heliometer.

1383

Heliopora

‖He′li‐op″o‐ra (?), n.(Zoöl.) An East Indian stony coral now known to belong to the Alcyonaria; — called also blue coral.

1384

Helioscope

He″li‐o‐scope (?), n. [Helio- + -scope: cf. F. hélioscope.] (Astron.) A telescope or instrument for viewing the sun without injury to the eyes, as through colored glasses, or wi...

1385

Heliostat

He″li‐o‐stat (?), n. [Helio- + Gr. � placed, standing, fr. � to place, stand: cf. F. héliostate.] An instrument consisting of a mirror moved by clockwork, by which a sunbeam is ...

1386

Heliotrope

He″li‐o‐trope (?), n. [F. héliotrope, L. heliotropium, Gr. �; � the sun + � to turn, � turn. See Heliacal, Trope.] 1. (Anc. Astron.) An instrument or machine for showing when th...

1387

Heliotroper

He″li‐o‐tro′per (?), n. The person at a geodetic station who has charge of the heliotrope.

1388

Heliotropic

He′li‐o‐trop″ic (?), a.(Bot.) Manifesting heliotropism; turning toward the sun.

1389

Heliotropism

He′li‐ot″ro‐pism (?), n. [Helio- + Gr. � to turn.] (Bot.) The phenomenon of turning toward the light, seen in many leaves and flowers.

1390

Heliotype

He″li‐o‐type (?), n. [Helio- + -type.] A picture obtained by the process of heliotypy.

1391

Heliotypic

He′li‐o‐typ″ic (?), a. Relating to, or obtained by, heliotypy.

1392

Heliotypy

He″li‐o‐ty′py (?), n. A method of transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography.

1393

Heliozoa

‖He′li‐o‐zo″a (?), n. pl. [NL., fr. Gr. � the sun + ζο̑ͅον an animal.] (Zoöl.) An order of fresh-water rhizopods having a more or less globular form, with slender radiating pseu...

1394

Helispheric

Hel′i‐spher″ic (?), Hel′i‐spher″ic‐al (�), a. [Helix + spheric, spherical.] Spiral.Helispherical line(Math.). the rhomb line in navigation.

1395

Helium

He″li‐um (?), n.(Chem.) A gaseous element found in the atmospheres of the sun and earth and in some rare minerals.

1396

Helium (2)

He″li‐um (hē″lĭ‐ŭm), n. [NL., fr. Gr. ἥλιοσ the sun.] (Chem.) An inert, monoatomic, gaseous element occurring in the atmosphere of the sun and stars, and in small quantities in ...

1397

Helix

He″lix (?), n.; pl. L. Helices (#), E. Helixes (#). [L. helix, Gr. �, �, fr. � to turn round; cf. L. volvere, and E. volute, voluble.] 1. (Geom.) A nonplane curve whose tangents...

1398

Hell

Hell (?), n. [AS. hell; akin to D. hel, OHG. hella, G. hölle, Icel. hal, Sw. helfvete, Dan. helvede, Goth. halja, and to AS. helan to conceal. ���. Cf. Hele, v. t., Conceal, Cel...

1399

Hell (2)

Hell, v. t. To overwhelm. Spenser.

1400

Hell-cat

Hell″–cat ′ (?), n. A witch; a hag. Middleton.

1401

Hell-diver

Hell″–div′er (?), n.(Zoöl.) The dabchick.

1402

Hell-haunted

Hell″–haunt′ed (�), a. Haunted by devils; hellish. Dryden.

1403

Hellanodic

Hel′la‐nod″ic (?), n.(Gr. Antiq.) A judge or umpire in games or combats.

1404

Hellbender

Hell″bend′er (?), n.(Zoöl.) A large North American aquatic salamander (Protonopsis horrida or Menopoma Alleghaniensis). It is very voracious and very tenacious of life. Also cal...