chalaza

[ kuh-ley-zuh ]

/ kəˈleɪ zə /

noun, plural cha·la·zas, cha·la·zae [kuh-ley-zee]. /kəˈleɪ zi/.

Zoology. one of the two albuminous twisted cords which fasten an egg yolk to the shell membrane.

Botany. the point of an ovule or seed where the integuments are united to the nucellus.

Origin of chalaza

1695–1705; <New Latin <Greek: hail, lump

OTHER WORDS FROM chalaza

cha·la·zal, cha·la·zi·an

[kuh-ley-zee-uhn], /kəˈleɪ zi ən/, adjective

Words nearby chalaza

Chaka, chakalaka, chakra, Chal., chalasia, chalaza, chalazion, chalcanthite, Chalcedon, chalcedony, chalcid

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for chalaza

Hence, by ascertaining the position of the micropyle and chalaza, the two extremities of the embryo can in general be discovered.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3|Various
Seeds larger than Aestivalis, pear-shaped; chalaza roundish.
The Grapes of New York|U. P. Hedrick
From the incrassation upon incubation when heat diffuseth the coagulum, from the chalaza or gallatine wh.
Medical Investigation in Seventeenth Century England|Charles W. Bodemer
Seeds small to medium, plump, slightly notched, if at all; chalaza oblong-oval; raphe slightly distinct or invisible.
The Grapes of New York|U. P. Hedrick

The pollen-tube does not penetrate the ovule through the micropyle but enters at the opposite end—the chalaza.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4|Various

British Dictionary definitions for chalaza

chalaza

/ (kəˈleɪzə) /

noun plural -zas or -zae (-ziː)

one of a pair of spiral threads of albumen holding the yolk of a bird's egg in position

the basal part of a plant ovule, where the integuments and nucellus are joined

Derived forms of chalaza

chalazal, adjective

Word Origin for chalaza

C18: New Latin, from Greek: hailstone

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for chalaza

chalaza

[ kə-lā′zə ]

Plural chalazae (kə-lā′zē) chalazas

One of two spiral bands of tissue in an egg that connect the yolk to the lining membrane at either end of the shell.

The region of a plant ovule that is opposite the micropyle, where the integuments and nucellus are joined.

单词	chalaza
释义	chalaza [ kuh-ley-zuh ] / kəˈleɪ zə / noun, plural cha·la·zas, cha·la·zae [kuh-ley-zee]. /kəˈleɪ zi/. Zoology. one of the two albuminous twisted cords which fasten an egg yolk to the shell membrane. Botany. the point of an ovule or seed where the integuments are united to the nucellus. Origin of chalaza 1695–1705; <New Latin <Greek: hail, lump OTHER WORDS FROM chalaza cha·la·zal, cha·la·zi·an [kuh-ley-zee-uhn], /kəˈleɪ zi ən/, adjective Words nearby chalaza Chaka, chakalaka, chakra, Chal., chalasia, chalaza, chalazion, chalcanthite, Chalcedon, chalcedony, chalcid Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for chalaza Hence, by ascertaining the position of the micropyle and chalaza, the two extremities of the embryo can in general be discovered. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3\|Various Seeds larger than Aestivalis, pear-shaped; chalaza roundish. The Grapes of New York\|U. P. Hedrick From the incrassation upon incubation when heat diffuseth the coagulum, from the chalaza or gallatine wh. Medical Investigation in Seventeenth Century England\|Charles W. Bodemer Seeds small to medium, plump, slightly notched, if at all; chalaza oblong-oval; raphe slightly distinct or invisible. The Grapes of New York\|U. P. Hedrick The pollen-tube does not penetrate the ovule through the micropyle but enters at the opposite end—the chalaza. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4\|Various British Dictionary definitions for chalaza chalaza / (kəˈleɪzə) / noun plural -zas or -zae (-ziː) one of a pair of spiral threads of albumen holding the yolk of a bird's egg in position the basal part of a plant ovule, where the integuments and nucellus are joined Derived forms of chalaza chalazal, adjective Word Origin for chalaza C18: New Latin, from Greek: hailstone Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for chalaza chalaza [ kə-lā′zə ] Plural chalazae (kə-lā′zē) chalazas One of two spiral bands of tissue in an egg that connect the yolk to the lining membrane at either end of the shell. The region of a plant ovule that is opposite the micropyle, where the integuments and nucellus are joined. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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