1) Ductless gland 2) Endocrine 3) Endocrine gland 4) Endocrine gland in the brain 5) French word used in English 6) Gland between the eyes 7) Gland that produces melatonin 8) Gland that secretes melatonin 9) Kind of gland 10) Like certain cones 11) Like evergreen cones 12) Melatonin gland 13) Melatonin producer 1) Rounded 
shaped like a pine-cone
• (a.) Of or pertaining to a pine cone; resembling a pine cone.
A gland-like structure in the brain which appears to be the major site of melatonin biosynthesis. The exact role of the pineal remain obscure. ... (27 Sep 1997) ... 
(pin´e-әl) shaped like a pine cone. pertaining to the pineal body.
Pi'ne·al adjective [ Latin pinea the cone of a pine, from pineus of the pine, from pinus a pine: confer French pinéale .] Of or pertaining to a pine cone; resembling a pine cone. Pineal gland (Anat.) , 
Type: Term Pronunciation: pin′ē-ăl Definitions: 1. Shaped like a pine cone. 2. Pertaining to the pineal body. Synonyms: piniform
[adj] - relating to the pineal body 2. [adj] - having the form of a pine cone
pineal 1. Piniform; shaped like a pine cone. 2. Pertaining to the corpus pineale (pineal gland).
pinea, pine cone.
adjective having the form of a pine cone
adjective, Latin pinea = a pine cone; hence, the pineal gland which is cone-shaped.