词根词缀：acetyl-

【来源及含义】Latin: derived from aceto- plus the suffix -yl; used in naming chemical radicals

【相关描述】Derived from or containing acetic acid in chemical nomenclature.

The words in this unit are directly related to the aceto- unit.

【同源单词】acetyl group, acetylase, acetylation, acetylcholine, acetylcysteine, acetyldigitoxin

词根词缀：acin-, acini-

【来源及含义】Latin: grape, grapes in a cluster

【相关词根词缀】 Cross references of word families that are derived directly, or indirectly, from: "grape, grapes": racem-; staphyl-; uveo-; uvul-.

【同源单词】acinic, aciniform, acinitis, acinose, acinotubular, acinous

词根词缀：alopec-

【来源及含义】Greek > Latin: fox; baldness; derived from "mange in foxes"; bald patches on the head

【相关词根词缀】 Links to other hair-related units: barba-; Beards; capillaro-; chaeto-; cirro-; coife; crino-; Hair & Beard Styles; hirsute; pilo-; pogo-; tricho-; villi-.

【同源单词】alopecia, alopecia areata, alopecia capitis totalis, alopecia congenitalis, alopecia follicularis, alopecia liminaris

词根词缀：apo-, ap-, aph-

【来源及含义】Greek: from, away from, asunder, separate, separation from, derived from

【同源单词】ahydrotaxis, aphorism, aphydrotactic, apobiosis, apobiotic, apocalypse

词根词缀：calci-, calc-, calcane-, calcio-, calco-, calcar-, calx

【来源及含义】Latin: lime, calcium; heel, bone of the tarsus; to tread [derived from calx, calcis, limestone, lime, pebble; from Greek words halix and psephos meaning "small stone, pebble"]

【同源单词】a capite ad calcem, acalculia, astragalocalcanean, calcaneal, calcanean, calcaneitis

词根词缀：-cola, -colas; -cole; -colent; -colid; -coline; -colous

【来源及含义】Latin: to inhabit; to live in, to live on, to live among; to dwell; living among, dwelling in; occurring on, occurring in

【相关描述】Suffixes that refer to the location or an area of growth. Used primarily in botanical and biological terminology to indicate a plant or an organism that is characterized by a habitat or place of existence as indicated by the combining root.

The suffix -cole is derived from Latin colere, "to inhabit, to dwell, to live".

Don't confuse this -cole, -cola , "inhabit, live in, dwelling in" unit with the following cole-, coleo- (sheath, scabbard, vagina); coll-, col- (neck); collo-, coll- (glue); colo-, col- (colon, large intestine); and colon-, coln- (farm, settlement) units.

【相关词根词缀】 Related life, live-word units: anima-; bio-; vita-; viva-.

【同源单词】acarocola, acarocole, acarocoline, acarocolous, acrodendrocola, acrodendrocole

词根词缀：gehenna-

【来源及含义】Hebrew > Greek > Latin: hell or hellfire

【相关描述】Moloch [MOH luhk] or Molech (Hebrew, melech: king). He was the god of the Ammonites, to whom children were made "to pass through the fire" as sacrifices. Children were dedicated ("passed over") and burned to Molech at the Tophet in the Valley of Hinnom near Jerusalem.

During the monarchical period of the Hebrews, the site was an infamous high place (called "topheth" and derived from an Aramaic word meaning "fireplace"), where some of the kings of Judah engaged in forbidden religious practices, including human sacrifice by fire; as mentioned earlier.

Probably because of these associations with fiery destruction and judgment, the word "Gehenna" came to be used metaphorically as a designation for hell or eternal damnation. As such, Gehenna is to be distinguished from Hades, which is either the bode of all the dead in general or the place where the wicked await the final judgment. In the New Testament, Gehenna designates the place or state of the final punishment of the wicked. It is variously described as a fiery furnace, an unquenchable fire, or an eternal fire prepared for the devil and his angels.

【相关词根词缀】 Cross references of word groups that are related, directly, indirectly, or partly to: "fire, burn, glow, or ashes": ars-, ard-; -bust; cand-, cend-; caust-, caut-; crema-; ciner-; ether-; flagr-; flam-; focus, foci-; fulg-; ign-; phleg-; phlog-; pyreto-, -pyrexia; pyr-; spod- (ashes; waste); volcan-.

【同源单词】gehenna, gehenne, gehennical

词根词缀：gel-, gela-, gelati-, gelatino-, geli-, gelo-

【来源及含义】Latin: to freeze; frosting; cold; then, to congeal, and finally: gelatin

【相关描述】Later it came to mean "to congeal"; having to do with "congealing" or with "gelatin, a protein derived from the partial hydrolysis of animal skin, connective tissue, and bone".

Don't confuse words from this Latin element with those from Greek gelo-, geloto-, meaning "laugh, laughing, laughter".

【相关词根词缀】 Cross references of word families that are related directly or indirectly to "winter, freezing, frost, and/or cold": algid- (cold, chilly); cheimo-, chimo- (winter, cold); crymo-, krymo- (cold, chill, frost); cryo-, kryo-; (cold, freezing); hiber- (winter, wintry); pago- (cold, freezing); psychro- (cold); rhigo- (cold, frost; shiver).

【同源单词】aerogel, gel, gelase, gelasis, gelate, gelatification

词根词缀：insulino-, insulin-, insula-, insulo-, insul-, isle

【来源及含义】Latin: island; derived from insul[a], "island" [used here in reference to the islands [islets] of Langerhans, irregular structures in the pancreas that produce the protein hormone insulin which is secreted into the blood where it regulates sugar metabolism]

【同源单词】aisle, circuminsular, ethological isolation, insular, insularism, insularity

词根词缀：keratin-

【来源及含义】Greek: containing, or derived from keratin, a highly insoluble scleroprotein that is the main constituent of horny tissues, the nails, and the organic matrix of tooth enamel; derived from Greek kera[s], kerat[os], "horn"

【同源单词】eukeratin, hyperkeratinization, keratin, keratinization, keratinize, keratinoid