• xoumestrol,
• voumestrol,
• foumestrol,
• doumestrol,
• ciumestrol,
• ckumestrol,
• clumestrol,
• cpumestrol,
• c0umestrol,
• c9umestrol,
• coymestrol,
• coumestril,
• comestrol,
• couestrol,
• Coumstril,
• Coumestroal,
• Coumestrel,
• Coumestrell,
• Coumestrolle,
• Coumestral

The adjective form of the word "Coumestrol" is "coumestrolic".

The plural form of "Coumestrol" is "Coumestrols".

The singular form of the word "Coumestrol" is "coumestrol" itself. It is not typically treated as a countable noun that has a distinct singular and plural form.