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Sperrin Mountains
sperrylite
spessartine
spew
Spey
Speyer
SPF
Spgs.
sphagnum
sphalerite
sphecid
sphen-
sphene
spheno-
sphenodon
sphenoid
sphenoid bone
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spermatozoon
sper·mat·o·zo·on [ spur màttə zṓ on, spùrmətə zṓ on ] (plural sper·mat·o·zo·a [ spur màttə zṓ ə, spùrmətə zṓ ə ])


noun 
Definition:
 
male reproductive cell: a male reproductive cell gamete that has an oval head with a nucleus, a short neck, and a tail by which it moves to find and fertilize an ovum

sper·mat·o·zo·an adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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