sperm cell

See sperm¹.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sperm′ cell`

1. spermatozoon.

2. any male gamete.

[1850–55]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

sperm cell - the male reproductive cell; the male gamete; "a sperm is mostly a nucleus surrounded by little other cellular material"

sperm, spermatozoan, spermatozoon

flagellum - a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)

come, seminal fluid, seed - the thick white fluid containing spermatozoa that is ejaculated by the male genital tract

gamete - a mature sexual reproductive cell having a single set of unpaired chromosomes

acrosome - a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg

male reproductive system - the reproductive system of males

Translations

sperm cell

n → Samenzelle f

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

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References in periodicals archive

The test conditions were taken into account when the sperm cell sample was obtained and evaluated in a post mortem time period less than 10 min.

Sperm Morphophysiology in Different Sections of the Rooster Reproductive Tract/Morfofisiologia Espermatica en Diferentes Secciones del Tracto Reproductivo del Gallo

Investigators said they also found sperm cell inside the victim's anus.

1 year-old found dead in Makati; cops suspect rape

Sperm cell analysis is an imperfect tool but remains the cornerstone of the investigation of male infertility [1].

Combined Raman Spectroscopy and Digital Holographic Microscopy for Sperm Cell Quality Analysis

"Our work challenges that dogma, held since early embryologists first observed mammalian eggs around 1827 and observed fertilisation 50 years later, that only an egg cell fertilised with a sperm cell can result in a live mammalian birth.

MAKING BABIES WITHOUT MUMS; Scientists find way to produce mice with no need for female eggs

Determination of the viability of the sperm cell of Colombian Criollos jackass through a aproach of cryopreservation using different cryoprotectants with the computer system analysis CASA

Determinacion de la viabilidad de la celula espermatica de asnos Criollos Colombianos a traves de un protocolo de criopreservacion utilizando diferentes crioprotectores y empleando el sistema computacional CASA

Cryopreservation technique is being used to preserve the genetic material over extended periods of time, as it slowdowns the sperm cell metabolism and maintains its viability for future use.

Ascorbic Acid Inclusion in Semen Extender Improves the Post-Thawed Semen Quality of Sahiwal Cattle (Bos indicus)

A second major discovery was made as researchers followed six men before and one year after gastric-bypass surgery (an effective intervention to lose weight) to find out how the surgery affected the epigenetic information contained in their sperm cells. The researchers observed an average of 4,000 structural changes to sperm cell DNA from the time before the surgery, directly after, and one year later.

What Your Father Ate Could Affect Your Health

Their winning image showcases a developing mouse sperm cell that has been stained for two proteins - KASH5 and SCP3.

Microscopic Revelations Make it Big Time: A*STAR Scientists' Prize-Winning Image to Light up Times Square, New York

with sperm cell itself or with seminal fluid.As there are no sperm cells in seminal fluid of patients with azospermia and as sperm cells are obtained surgically with testicular extraction they are naturally an ideal model to test the protective partner-specific immune tolerance.

The incidence of preeclampsia in Intra-Cytoplasmic Sperm Injection pregnancies

Although various properties of spermatozoa including swimming speed and swimming force before and after optical trapping have, to a certain extent, been studied in different mammalian species, no reports exist on the study of rotational dynamics of a single live sperm cell within a trap.

Rotational dynamics of optically trapped human spermatozoa

We also observed that when LH and Lutalyse were added to the medium, MMP-2, MMP-9, TIMP-2, and TIMP-3 expressions were low, sperm cell morphology was abnormal, and sperm viability was low.

Effects of hormones on the expression of matrix metalloproteinases and their inhibitors in bovine spermatozoa

Along with beat frequency, these kinematic characteristics reflect the biological status of sperm, a critical indicator of the fertilization ability of a particular sperm cell. Capacitation of sperm, which is required to render sperm competent to fertilize an oocyte, causes a change in sperm kinematic motion (16), and a positive correlation exists between fertility efficiency and other properties, such as straight-line velocity (VSL), beat cross frequency, and motility (17).

Direct characterization of motion-dependent parameters of sperm in a microfluidic device: proof of principle