cotyledon

As a noun cotyledon

is cotyledon.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between cotyledon and leaves

is that cotyledon is cotyledon while leaves is or leaves can be .

As a verb leaves is

(leave).

In botany terms the difference between frond and cotyledon

is that frond is the leaf of a fern, especially a compound leaf while cotyledon is the leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling.

Cotyledon is a related term of needle.

As nouns the difference between cotyledon and needle

is that cotyledon is cotyledon while needle is a long, thin, sharp implement usually for piercing such as sewing, or knitting, acupuncture, tattooing, body piercing, medical injections etc.

As a verb needle is

to pierce with a needle, especially for sewing or acupuncture.

As a noun cotyledon is

cotyledon.

Cotyledon is a related term of bract.

As nouns the difference between cotyledon and bract

is that cotyledon is cotyledon while bract is (botany) a leaf or leaf-like structure from the axil out of which a stalk of a flower or an inflorescence arises.

As nouns the difference between cotyledon and radical

is that cotyledon is cotyledon while radical is a member of the most progressive wing of the liberal party; someone favouring social reform (but generally stopping short of socialism).

As an adjective radical is

favoring fundamental change, or change at the root cause of a matter.

As nouns the difference between micropyle and cotyledon

is that micropyle is (botany) in seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum while cotyledon is cotyledon.

As nouns the difference between taxonomy and cotyledon

is that taxonomy is the science or the technique used to make a classification while cotyledon is cotyledon.