1. A small clear space on the fecunded ovum of an organism which precedes the appearance of the nucleus.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• balastidae,
• blastede,
• vlastide,
• nlastide,
• hlastide,
• glastide,
• bkastide,
• bpastide,
• boastide,
• blasatide,
• blasdtide,
• blastidee,
• blaside,
• blastiide,
• Blasitede,
• Blastidia,
• Blasidide,
• Blastidie,
• Blasside,
• Blastidid