GROUNDMASS

Meaning of GROUNDMASS in English

/grownd"mas'/ , n.

the crystalline, granular, or glassy base or matrix of a porphyritic or other igneous rock, in which the more prominent crystals are embedded.

[ 1875-80; GROUND 1 + MASS ]

Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012

GROUNDMASS — noun Date: 1879 the fine-grained or glassy base of a porphyry in which the larger distinct crystals are embedded
Толковый словарь английского языка - Merriam Webster
GROUNDMASS — ˈ ̷ ̷ˌ ̷ ̷ noun : the fine-grained or glassy base of a porphyry in which the larger distinct crystals are embedded
Webster's New International English Dictionary
GROUNDMASS — n. crystalline base of volcanic rock
Толковый словарь английского языка - Редакция bed
GROUNDMASS — noun Date: 1879 : the fine-grained or glassy base of a porphyry in which the larger distinct crystals are embedded
Merriam-Webster's Collegiate English vocabulary
GROUNDMASS — ■ noun Geology the compact, finer-grained material in which the crystals are embedded in a porphyritic rock.
Concise Oxford English vocab
GROUNDMASS — [ground.mass] n (1879): the fine-grained or glassy base of a porphyry in which the larger distinct crystals are embedded
Merriam-Webster English vocab
GROUNDMASS — n. Pronunciation: ' grau ̇ n(d)- ˌ mas Function: noun Date: 1879 : the fine-grained or glassy base of a …
Merriam Webster Collegiate English Dictionary
PORPHYRY — noun (plural -ries) Etymology: Middle English porphiri, from Medieval Latin porphyrium, alteration of Latin porphyrites, from Greek porphyritēs (lithos), literally, …
Толковый словарь английского языка - Merriam Webster
GRANOPHYRE — noun Etymology: International Scientific Vocabulary, from grano- + French -phyre (as in porphyre porphyry) Date: 1882 a porphyritic igneous rock …
Толковый словарь английского языка - Merriam Webster
CEMENT — I. noun Etymology: Middle English sement, from Anglo-French ciment, from Latin caementum stone chips used in making mortar, from caedere …
Толковый словарь английского языка - Merriam Webster
OCCULT
Webster's New International English Dictionary
CEMENT — I. sə̇ˈment, sēˈ- sometimes ˈsēˌm- noun ( -s ) Etymology: Middle English sement, siment, from Old French ciment, from Latin …
Webster's New International English Dictionary
VERD ANTIQUE — noun or verde antique |vərˌdan.|tēk Etymology: Italian verde antico, literally, ancient green 1. : a green mottled or veined serpentine …
Webster's New International English Dictionary
SCHÖNFELSITE — ˈshōnˌfelˌzīt, ˈshə(r)n- noun ( -s ) Etymology: German schönfelsit, from Altschönfels, Saxony, Germany + German -it -ite : a feldspar-free …
Webster's New International English Dictionary
RHYOLITE — ˈrīəˌlīt noun ( -s ) Etymology: German rhyolith, from rhyo- (irregular from Greek rhyak-, rhyax stream of lava) + -lith …
Webster's New International English Dictionary
QUARTZ PORPHYRY
Webster's New International English Dictionary
PORPHYRY — ˈpȯ(r)fərē, -ri noun ( -es ) Etymology: Middle English porfurie, from (assumed) Anglo-French porfirie, from Medieval Latin porphyrium, alteration of …
Webster's New International English Dictionary
PORPHYRITIC — | ̷ ̷ ̷ ̷|rid.ik adjective Etymology: Medieval Latin porphyriticus, from Greek porphyritikos, from porphyritēs ( lithos ) porphyry + -ikos -ic 1. : …
Webster's New International English Dictionary
PEGMATOPHYRE — pegˈmad.əˌfī(ə)r noun ( -s ) Etymology: pegmat ite + -o- + -phyre : a granite porphyry with micropegmatitic groundmass
Webster's New International English Dictionary
NAVITE — ˈnāˌvīt noun ( -s ) Etymology: German navit, from Latin Nava Nahe river, Germany + German -it -ite : a …
Webster's New International English Dictionary
MELAPHYRE — ˈmeləˌfī(ə)r noun ( -s ) Etymology: French mélaphyre, from méla- mela- + -phyre 1. : a porphyritic rock consisting of …
Webster's New International English Dictionary
MATRIX — ˈmā.triks, -rēks sometimes ˈma.- noun ( plural matri·ces ˈmā.trəˌsēz or ˈma.- sometimes ˈma.trəsə̇z ; or matrix·es ) Etymology: Latin, from …
Webster's New International English Dictionary
HEMICRYSTALLINE — “+ adjective Etymology: International Scientific Vocabulary hemi (I) + crystalline : partly crystalline : characterized by crystals embedded in an …
Webster's New International English Dictionary
GRANOPHYRE — ˈgranəˌfī(ə)r noun ( -s ) Etymology: International Scientific Vocabulary grano- + -phyre; originally formed as German granophyr : a porphyritic …
Webster's New International English Dictionary
PORPHYRY — /pawr"feuh ree/ , n. , pl. porphyries . 1. a very hard rock, anciently quarried in Egypt, having a dark, …
Random House Webster's Unabridged English Dictionary
ORTHOPHYRIC — /awr'theuh fuy"rik/ , adj. Petrog. of or pertaining to a texture in which the groundmass is characterized by closely packed, …
Random House Webster's Unabridged English Dictionary
TRACHYTE — light-coloured, very fine-grained extrusive igneous rock that is composed chiefly of alkali feldspar with minor amounts of dark-coloured minerals such …
Britannica English vocabulary
PHONOLITE — any member of a group of extrusive igneous rocks (lavas) that are rich in nepheline and potash feldspar. The typical …
Britannica English vocabulary
LAMPROPHYRE — any of a group of dark gray to black intrusive igneous rocks that generally occur as dikes (tabular bodies inserted …
Britannica English vocabulary
GRANOPHYRE — fine-grained igneous rock that is characterized by a porphyritic texture, having large crystals (phenocrysts) that rest in a nonglassy, finely …
Britannica English vocabulary
DACITE — volcanic rock that may be considered a quartz-bearing variety of andesite (q.v.). Dacite is primarily associated with andesite and trachyte …
Britannica English vocabulary
ANDESITE — any member of a large family of rocks that occur in most of the world's volcanic areas. Andesites occur mainly …
Britannica English vocabulary

Random House Webster's Unabridged English Dictionary

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